JetFormBuilder — Dynamic Blocks Form Builder: known security problems
26 known security problems reported for this WordPress plugin, with the affected versions, the fix and what to do.
Updated
In short
There are 26 known security problems on this page. Each one has a fixed version. Updating to version 3.6.6.1 or newer covers every fixed problem listed here.
Based on public reports. Check the plugin’s changelog. Watchfox AI may be wrong.
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Someone could do things on your site they should not be allowed to (up to and including 3.6.6)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.6.6
- Fixed in
- 3.6.6.1
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.6.1 or newer.
- Official ID
- CVE-2026-107431
- Report title
- JetFormBuilder — Dynamic Blocks Form Builder <= 3.6.6 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (up to and including 3.6.6)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.6.6
- Fixed in
- 3.6.6.1
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.6.1 or newer.
- Official ID
- CVE-2026-103912
- Report title
- JetFormBuilder <= 3.6.6 - Reflected DOM-Based Cross-Site Scripting via 'query_var' Dynamic Preset via data-jfb-macro / JFB_FIELD:: Macro Renderer
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (up to and including 3.6.5.4)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.6.5.4
- Fixed in
- 3.6.6
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.6 or newer.
- Official ID
- CVE-2026-97342
- Report title
- JetFormBuilder <= 3.6.5.4 - Unauthenticated Stored Cross-Site Scripting via 'choice' Post Meta via Insert/Update Post Action
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (up to and including 3.6.5.4) (2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.6.5.4
- Fixed in
- 3.6.6
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.6 or newer.
- Official ID
- CVE-2026-102391
- Report title
- JetFormBuilder — Dynamic Blocks Form Builder <= 3.6.5.4 - Unauthenticated Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (up to and including 3.6.5.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.6.5.3
- Fixed in
- 3.6.5.4
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.5.4 or newer.
- Official ID
- CVE-2026-92212
- Report title
- JetFormBuilder <= 3.6.5.3 - Reflected Cross-Site Scripting via 'jfb_xss' (URL Query Variable) Parameter via Calculated Field
- First reported
- Sources
- Wordfence, seen
Someone who already has an admin account could read or delete private files on your server
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.6.5.2
- Fixed in
- 3.6.5.3
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.5.3 or newer.
- Official ID
- CVE-2026-19860
- Report title
- JetFormBuilder <= 3.6.5.2 - Authenticated (Administrator+) Arbitrary File Deletion
- First reported
- Sources
- Wordfence, seen
A stranger could take over your site as an admin
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.6.2
- Fixed in
- 3.6.2.1
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.2.1 or newer.
- Official ID
- CVE-2026-12793
- Report title
- JetFormBuilder <= 3.6.2 - Unauthenticated Privilege Escalation via '_jet_engine_booking_form_id' Parameter
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (up to and including 3.6.5.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.6.5.1
- Fixed in
- 3.6.5.2
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.5.2 or newer.
- Official ID
- CVE-2026-84817
- Report title
- JetFormBuilder — Dynamic Blocks Form Builder <= 3.6.5.1 - Unauthenticated Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (before 3.6.5.2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 3.6.5.2
- Fixed in
- 3.6.5.2
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.5.2 or newer.
- Official ID
- CVE-2026-19858
- Report title
- JetFormBuilder — Dynamic Blocks Form Builder < 3.6.5.2 - Unauthenticated Information Exposure
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (before 3.6.5.2) (2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 3.6.5.2
- Fixed in
- 3.6.5.2
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.5.2 or newer.
- Official ID
- CVE-2026-19862
- Report title
- JetFormBuilder — Dynamic Blocks Form Builder < 3.6.5.2 - Unauthenticated Email Header Injection
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (before 3.6.5.2) (3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 3.6.5.2
- Fixed in
- 3.6.5.2
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.5.2 or newer.
- Official ID
- CVE-2026-19859
- Report title
- JetFormBuilder — Dynamic Blocks Form Builder < 3.6.5.2 - Unauthenticated Arbitrary Shortcode Execution
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (before 3.6.5.2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 3.6.5.2
- Fixed in
- 3.6.5.2
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.5.2 or newer.
- Official ID
- CVE-2026-19861
- Report title
- JetFormBuilder — Dynamic Blocks Form Builder < 3.6.5.2 - Unauthenticated Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
A stranger could do things on your site they should not be allowed to (up to and including 3.6.2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.6.2
- Fixed in
- 3.6.2.1
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.2.1 or newer.
- Report title
- JetFormBuilder <= 3.6.2 - Missing Authorization to Unauthenticated JetEngine Options Page Modification
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (up to and including 3.6.4.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.6.4.1
- Fixed in
- 3.6.4.2
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.4.2 or newer.
- Official ID
- CVE-2026-28140
- Report title
- JetFormBuilder — Dynamic Blocks Form Builder <= 3.6.4.1 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
A stranger could do things on your site they should not be allowed to (up to and including 3.6.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.6.3
- Fixed in
- 3.6.3.1
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.3.1 or newer.
- Official ID
- CVE-2026-13459
- Report title
- JetFormBuilder <= 3.6.3 - Missing Authorization to Unauthenticated Sensitive Information Disclosure via 'context' Parameter
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (up to and including 3.6.0.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.6.0.1
- Fixed in
- 3.6.1
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.1 or newer.
- Official ID
- CVE-2026-54195
- Report title
- JetFormBuilder — Dynamic Blocks Form Builder <= 3.6.0.1 - Unauthenticated Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Anyone with an account on your site, even a basic one could take over your site as an admin
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.6.1
- Fixed in
- 3.6.1.1
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.6.1.1 or newer.
- Official ID
- CVE-2026-54196
- Report title
- JetFormBuilder — Dynamic Blocks Form Builder <= 3.6.1 - Authenticated (Subscriber+) Privilege Escalation
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could run their own code on your site and take it over
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.5.6.1
- Fixed in
- 3.5.6.2
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.5.6.2 or newer.
- Official ID
- CVE-2026-32525
- Report title
- JetFormBuilder — Dynamic Blocks Form Builder <= 3.5.6.1 - Authenticated (Contributor+) Remote Code Execution
- First reported
- Sources
- Wordfence, seen
A stranger could read or delete private files on your server
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.5.6.2
- Fixed in
- 3.5.6.3
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.5.6.3 or newer.
- Official ID
- CVE-2026-4373
- Report title
- JetFormBuilder <= 3.5.6.2 - Unauthenticated Arbitrary File Read via Media Field
- First reported
- Sources
- Wordfence, seen
A stranger could do things on your site they should not be allowed to (up to and including 3.5.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.5.3
- Fixed in
- 3.5.4
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.5.4 or newer.
- Official ID
- CVE-2025-11991
- Report title
- JetFormBuilder <= 3.5.3 - Missing Authorization to Unauthenticated Form Generation
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (up to and including 3.5.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.5.3
- Fixed in
- 3.5.4
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.5.4 or newer.
- Official ID
- CVE-2025-64384
- Report title
- JetFormBuilder <= 3.5.3 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
Someone who already has an admin account could in some setups, take over your site
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.5.1.2
- Fixed in
- 3.5.2
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.5.2 or newer.
- Official ID
- CVE-2025-53990
- Report title
- JetFormBuilder <= 3.5.1.2 - Authenticated (Administrator+) PHP Object Injection
- First reported
- Sources
- Wordfence, seen
Someone who already has an admin account could take over your site as an admin
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.3.4.1
- Fixed in
- 3.3.4.2
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.3.4.2 or newer.
- Official ID
- CVE-2024-7291
- Report title
- JetFormBuilder <= 3.3.4.1 - Authenticated (Administrator+) Privilege Escalation
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (up to and including 3.1.4)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.1.4
- Fixed in
- 3.1.5
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.1.5 or newer.
- Official ID
- CVE-2023-48763
- Report title
- JetFormBuilder <= 3.1.4 - Unauthenticated Content Injection
- First reported
- Sources
- Wordfence, seen
Someone with an author account on your site could take over your site as an admin
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.0.8
- Fixed in
- 3.0.9
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.0.9 or newer.
- Official ID
- CVE-2023-37866
- Report title
- JetFormBuilder <= 3.0.8 - Authenticated (Author+) Privilege Escalation
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.0.6
- Fixed in
- 3.0.7
- What to do
- If your site has an affected version, update JetFormBuilder — Dynamic Blocks Form Builder to version 3.0.7 or newer.
- Official ID
- CVE-2023-33212
- Report title
- JetFormBuilder <= 3.0.6 - Cross-Site Request Fogery via 'do_admin_action'
- First reported
- Sources
- Wordfence, seen
Where this comes from
We collect these reports from public security sources and rewrite them in plain words. Each problem shows its sources and the date we first saw it. This page never says whether your own site is affected: only a check of your site’s versions can tell.
Get an email when your site is affected.
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