Passster – Password Protect Pages and Content: Cross-site scripting
Passster – Password Protect Pages and Content is affected by cross-site scripting. Exploitation requires at least contributor-level access. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
- Component
- Passster – Password Protect Pages and Content
- Plugin slug
content-protector- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Jan 28, 2026
This CVE was published Jan 28, 2026 and is one of 5 known issues for this plugin.
Update, patch or deactivate.
Update Passster – Password Protect Pages and Content to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Passster – Password Protect Pages and Content plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'content_protector' shortcode in all versions up to, and including, 4.2.24. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability was partially patched in version 4.2.21.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N