Passster – Password Protect Pages and Content: known security problems
21 known security problems reported for this WordPress plugin, with the affected versions, the fix and what to do.
Updated
In short
There are 21 known security problems on this page. Each one has a fixed version. Updating to version 4.3.19 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 4.3.18)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.3.18
- Fixed in
- 4.3.19
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.3.19 or newer.
- Official ID
- CVE-2026-110896
- Report title
- Passster – Password Protect Pages and Content <= 4.3.18 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (up to and including 4.3.13)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.3.13
- Fixed in
- 4.3.14
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.3.14 or newer.
- Official ID
- CVE-2026-62114
- Report title
- Passster – Password Protect Pages and Content <= 4.3.13 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (before 4.3.9)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 4.3.9
- Fixed in
- 4.3.9
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.3.9 or newer.
- Official ID
- CVE-2026-17559
- Report title
- Passster – Password Protect Pages and Content < 4.3.9 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (before 4.3.6)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 4.3.6
- Fixed in
- 4.3.6
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.3.6 or newer.
- Official ID
- CVE-2026-16604
- Report title
- Passster – Password Protect Pages and Content < 4.3.6 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site 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 4.3.6
- Fixed in
- 4.3.7
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.3.7 or newer.
- Official ID
- CVE-2025-15674
- Report title
- Content Protector (Passster) <= 4.3.6 - Authenticated (Contributor+) Sensitive Information Exposure
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (up to and including 4.3.5)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.3.5
- Fixed in
- 4.3.6
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.3.6 or newer.
- Official ID
- CVE-2026-16602
- Report title
- Content Protector (Passster) <= 4.3.5 - Unauthenticated Non-Public Post Content Disclosure
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (up to and including 4.3.5) (2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.3.5
- Fixed in
- 4.3.6
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.3.6 or newer.
- Official ID
- CVE-2026-16603
- Report title
- Content Protector (Passster) <= 4.3.5 - Unauthenticated Category-Locked Content Disclosure
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (up to and including 4.2.25)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.2.25
- Fixed in
- 4.2.26
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.2.26 or newer.
- Official ID
- CVE-2025-15490
- Report title
- Passster <= 4.2.25 - Unauthenticated Global Content Protection Bypass
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (up to and including 4.2.23)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.2.23
- Fixed in
- 4.2.24
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.2.24 or newer.
- Official ID
- CVE-2025-15489
- Report title
- Passster <= 4.2.23 - Unauthenticated Protected Content Disclosure
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (up to and including 4.2.25)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.2.25
- Fixed in
- 4.2.26
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.2.26 or newer.
- Official ID
- CVE-2026-25036
- Report title
- Passster <= 4.2.25 - Missing Authorization
- 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 4.2.24)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.2.24
- Fixed in
- 4.2.25
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.2.25 or newer.
- Official ID
- CVE-2025-14865
- Report title
- Passster – Password Protect Pages and Content <= 4.2.24 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (up to and including 4.2.19)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.2.19
- Fixed in
- 4.2.20
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.2.20 or newer.
- Official ID
- CVE-2025-64218
- Report title
- Passster <= 4.2.19 - Unauthenticated Information Exposure
- 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 4.2.18)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.2.18
- Fixed in
- 4.2.19
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.2.19 or newer.
- Official ID
- CVE-2025-57926
- Report title
- Passster <= 4.2.18 - Authenticated (Contributor+) Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
A stranger 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 4.2.10
- Fixed in
- 4.2.11
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.2.11 or newer.
- Official ID
- CVE-2024-11282
- Report title
- Passster – Password Protect Pages and Content <= 4.2.10 - Unauthenticated Content Restriction Bypass to Sensitive Information Exposure
- 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 4.2.6.4)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.2.6.4
- Fixed in
- 4.2.6.5
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.2.6.5 or newer.
- Official ID
- CVE-2024-2026
- Report title
- Passster <= 4.2.6.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via content_protector Shortcode
- First reported
- Sources
- Wordfence, seen
Someone 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 4.2.6.2
- Fixed in
- 4.2.6.3
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.2.6.3 or newer.
- Official ID
- CVE-2024-0616
- Report title
- Passster – Password Protect Pages and Content <= 4.2.6.2 - Missing Authorization to Sensitive Information Exposure
- First reported
- Sources
- Wordfence, seen
Someone 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 4.2.1
- Fixed in
- 4.2.2
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 4.2.2 or newer.
- Official ID
- CVE-2023-33999
- Report title
- Freemius SDK <= 2.5.9 - Reflected Cross-Site Scripting via fs_request_get
- 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 3.5.5.7)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.5.5.7
- Fixed in
- 3.5.5.8
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 3.5.5.8 or newer.
- Official ID
- CVE-2021-24837
- Report title
- Passster – Password Protection <= 3.5.5.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 3.5.5.8)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.5.5.8
- Fixed in
- 3.5.5.9
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 3.5.5.9 or newer.
- Official ID
- CVE-2021-24881
- Report title
- Passster <= 3.5.5.8 - Missing Authentication leading to Sensitive Information Disclosure (Private Post Leakage)
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 3.5.5.5.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.5.5.5.1
- Fixed in
- 3.5.5.5.2
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 3.5.5.5.2 or newer.
- Official ID
- CVE-2022-3206
- Report title
- Passster <= 3.5.5.5.1 - Insecure Password Storage to Sensitive Data Exposure
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (before 3.5.5.2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 3.5.5.2
- Fixed in
- 3.5.5.2
- What to do
- If your site has an affected version, update Passster – Password Protect Pages and Content to version 3.5.5.2 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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