CVE-2026-54613 Vvveb: Path Traversal in Revision Backup Reader/Deleter via Unsanitized theme Parameter
An authenticated editor can exploit unsanitized theme parameters to read or delete backup files outside the intended directory.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-54613?
CVE-2026-54613 is a medium-severity path traversal vulnerability in givanz Vvveb, published on 17 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to 1.0.8.5, getThemeFolder() in admin/controller/editor/revisions.php returns the attacker-controlled theme parameter without sanitization, and backupFolder() concatenates it beneath DIR_THEMES before editor/revisions/load or editor/revisions/delete operates on a named .html file. sanitizeBackupFileName() strips traversal characters only from the separate file parameter and does not protect the theme directory component. An authenticated user with the default Editor role and editor/* permission can submit traversal sequences that redirect file_get_contents() or unlink() to a reachable backup subdirectory outside the web root. A valid admin session and CSRF token are required, the read is limited to .html files in backup directories, and deletion additionally requires filesystem write permission. This can disclose sensitive exported site content or remove backup data. This issue is fixed in version 1.0.8.5.
Weakness: CWE-22
Which versions are affected by CVE-2026-54613?
How do I fix CVE-2026-54613?
No fix has been published for CVE-2026-54613 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-54613 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54613 exists.
Sources
Also known as GHSA-gjxp-vrcw-69v8.