Blocksy Companion: known security problems
15 known security problems reported for this WordPress plugin, with the affected versions, the fix and what to do.
Updated
In short
There are 15 known security problems on this page. Each one has a fixed version. Updating to version 2.1.59 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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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 2.1.58
- Fixed in
- 2.1.59
- What to do
- If your site has an affected version, update Blocksy Companion to version 2.1.59 or newer.
- Official ID
- CVE-2026-107645
- Report title
- Blocksy Companion <= 2.1.58 - Unauthenticated Privilege Escalation to 'role' Parameter
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (up to and including 2.1.55)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.1.55
- Fixed in
- 2.1.56
- What to do
- If your site has an affected version, update Blocksy Companion to version 2.1.56 or newer.
- Official ID
- CVE-2026-97247
- Report title
- Blocksy Companion <= 2.1.55 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
Someone with an author account on your site could plant harmful code that runs for your visitors or admins
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.1.51
- Fixed in
- 2.1.52
- What to do
- If your site has an affected version, update Blocksy Companion to version 2.1.52 or newer.
- Official ID
- CVE-2026-18488
- Report title
- Blocksy Companion <= 2.1.51 - Authenticated (Author+) Stored Cross-Site Scripting via 'tagName' Block Attribute (blocksy/dynamic-data)
- First reported
- Sources
- Wordfence, seen
A stranger 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 2.1.46
- Fixed in
- 2.1.47
- What to do
- If your site has an affected version, update Blocksy Companion to version 2.1.47 or newer.
- Official ID
- CVE-2026-15158
- Report title
- Blocksy Companion <= 2.1.46 - Unauthenticated Arbitrary File Upload via 'blc-review-images[]' Parameter
- First reported
- Sources
- Wordfence, seen
Someone with an editor account on your site could plant harmful code that runs for your visitors or admins
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.1.45
- Fixed in
- 2.1.46
- What to do
- If your site has an affected version, update Blocksy Companion to version 2.1.46 or newer.
- Official ID
- CVE-2026-12430
- Report title
- Blocksy Companion <= 2.1.45 - Authenticated (Editor+) Stored Cross-Site Scripting via 'product_description' Parameter
- First reported
- Sources
- Wordfence, seen
Someone with an author 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 2.1.19
- Fixed in
- 2.1.20
- What to do
- If your site has an affected version, update Blocksy Companion to version 2.1.20 or newer.
- Official ID
- CVE-2025-12846
- Report title
- Blocksy Companion <= 2.1.19 - Authenticated (Author+) Arbitrary File Upload via SVG Upload Bypass
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could plant harmful code that runs for your visitors or admins (up to and including 2.1.14)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.1.14
- Fixed in
- 2.1.15
- What to do
- If your site has an affected version, update Blocksy Companion to version 2.1.15 or newer.
- Official ID
- CVE-2025-12475
- Report title
- Blocksy Companion <= 2.1.14 - Authenticated (Contributor+) Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could plant harmful code that runs for your visitors or admins (up to and including 2.1.10)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.1.10
- Fixed in
- 2.1.11
- What to do
- If your site has an affected version, update Blocksy Companion to version 2.1.11 or newer.
- Official ID
- CVE-2025-9565
- Report title
- Blocksy Companion <= 2.1.10 - Authenticated (Contributor+) Stored Cross-Site Scripting via blocksy_newsletter_subscribe Shortcode
- First reported
- Sources
- Wordfence, seen
Someone could make your server visit other addresses on their behalf
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.0.42
- Fixed in
- 2.0.43
- What to do
- If your site has an affected version, update Blocksy Companion to version 2.0.43 or newer.
- Official ID
- CVE-2024-35633
- Report title
- Blocksy Companion <= 2.0.42 - Authenticated (Admin+) Server-Side Request Forgery
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could plant harmful code that runs for your visitors or admins (up to and including 2.0.45)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.0.45
- Fixed in
- 2.0.46
- What to do
- If your site has an affected version, update Blocksy Companion to version 2.0.46 or newer.
- Official ID
- CVE-2024-4487
- Report title
- Blocksy Companion <= 2.0.45 - Authenticated (Contributor+) Stored Cross-Site Scripting via SVG Uploads
- First reported
- Sources
- Wordfence, seen
Someone could trick a logged-in admin into changing settings without knowing
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.0.28
- Fixed in
- 2.0.29
- What to do
- If your site has an affected version, update Blocksy Companion to version 2.0.29 or newer.
- Official ID
- CVE-2024-31932
- Report title
- Blocksy Companion <= 2.0.28 - Cross-Site Request Forgery
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could plant harmful code that runs for your visitors or admins (up to and including 2.0.31)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.0.31
- Fixed in
- 2.0.32
- What to do
- If your site has an affected version, update Blocksy Companion to version 2.0.32 or newer.
- Official ID
- CVE-2024-2392
- Report title
- Blocksy Companion <= 2.0.31 - Authenticated (Contributor+) Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Anyone with an account on your site, even a basic one could see private information they should not see
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 1.8.81
- Fixed in
- 1.8.82
- What to do
- If your site has an affected version, update Blocksy Companion to version 1.8.82 or newer.
- Official ID
- CVE-2023-1911
- Report title
- Blocksy Companion <= 1.8.81 - Authenticated(Subscriber+) Sensitive Information Exposure via blocksy_posts shortcode
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could plant harmful code that runs for your visitors or admins (before 1.8.68)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 1.8.68
- Fixed in
- 1.8.68
- What to do
- If your site has an affected version, update Blocksy Companion to version 1.8.68 or newer.
- Official ID
- CVE-2023-23898
- Report title
- Blocksy Companion <= 1.8.67 - Authenticated (Contributor+) Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (before 1.8.20)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 1.8.20
- Fixed in
- 1.8.20
- What to do
- If your site has an affected version, update Blocksy Companion to version 1.8.20 or newer.
- Official ID
- CVE-2022-4974
- Report title
- Freemius SDK <= 2.4.2 - Missing Authorization Checks
- 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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