Vulnerability · Published Aug 31, 2026 · Assigned by GitHub_M
CVE-2026-82394Sulu: Fix authorization bypass when creating preview links
Medium 5.3
In plain English
A medium-severity missing authorization in sulu from sulu. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Sulu is an open-source PHP content management system based on the Symfony framework. Prior to versions 2.6.25 and 3.0.8, the preview-link endpoint and src/Sulu/Bundle/PreviewBundle/Application/Manager/PreviewLinkManager.php do not enforce VIEW permission for the target resource in PreviewLinkManager::generate() or PreviewLinkManager::revoke(). An authenticated administration user who knows a target resource identifier can create or revoke a preview link for any page, article, or snippet, including content in a webspace or area the user cannot view. A generated preview URL is public and resolves content by an opaque token, allowing the user or anyone receiving the link to read restricted content without authentication. This issue is fixed in versions 2.6.25 and 3.0.8.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | sulu/sulu | 2.6.25 | GHSA-65cv-w493-7vhq |
| Packagist | sulu/sulu | 3.0.8 | GHSA-65cv-w493-7vhq |
Affected products (as reported)
Weakness: CWE-862, CWE-863 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
References
- https://github.com/sulu/sulu/security/advisories/GHSA-65cv-w493-7vhq x_refsource_CONFIRM
- https://github.com/sulu/sulu/commit/44d8844c3514a70b769ab791b9530df806240fab x_refsource_MISC
- https://github.com/sulu/sulu/releases/tag/2.6.25 x_refsource_MISC
- https://github.com/sulu/sulu/releases/tag/3.0.8 x_refsource_MISC