Passster exposes globally protected content through the REST API
Passster before 4.3.7 does not apply global password protection to eligible low-privilege requests through the WordPress core REST API. When global protection is enabled, a logged-in user with edit_posts capability, including a Contributor, can retrieve protected post and page content without the password. The exact REST route, parameters, Passster authorization hook and response field are not disclosed.
- Component
- Passster
- Plugin slug
content-protector- Affected
- < 4.3.7
- Safe version
4.3.7- Published
- Aug 06, 2026
This CVE was published Aug 06, 2026 and is one of 7 known issues for this plugin.
Update, patch or deactivate.
Update Passster to 4.3.7 or later. Until updated, remove edit_posts from untrusted accounts or do not rely on Passster alone for confidential content.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
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 WordPress plugin before 4.3.7 does not restrict low-privilege users holding the edit_posts capability from reading globally password-protected content through the WordPress core REST API when global protection is enabled, allowing any Contributor or higher to read the content of protected pages and posts without knowing the password.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N