CVE-2026-54612: Vvveb: Authenticated editor path traversal to PHP file write/RCE via data-v-save-global
Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. From 1.0.0 until 1.0.8.5, saveGlobalElements() in admin/controller/editor/global-trait.php concatenates the attacker-controlled file portion of data-v-save-global to the active theme directory before loadHTMLFile() and fileputcontents() operate on it. An authenticated user with the default Editor role and editor/ permission can submit crafted HTML to module=editor/editor&action=save and traverse to an existing writable PHP file outside the theme directory. If the target is web-accessible, editor-controlled PHP content executes in the web server context; a shipped public/vadmin/index.php entrypoint can be used as an execution trampoline rather than requiring a test-only file. This can permit persistent webshell placement and compromise application confidentiality, integrity, and availability. This issue is fixed in version 1.0.8.5.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Vvvebto a version that resolves this vulnerability.Fixed in 1.0.8.5
Event History
Frequently Asked Questions
Which Vvveb versions require remediation?
The issue affects Vvveb versions from 1.0.0 through versions before the fix in 1.0.8.5. Upgrade to version 1.0.8.5.
What level of access does an attacker need?
An attacker must be authenticated and have the Editor role with editor/* permission. The default Editor role has the relevant permission, so this is not limited to administrators.
What conditions are needed for code execution?
The attacker needs to target an existing writable PHP file outside the active theme directory. If that file is web-accessible, attacker-controlled PHP can execute in the web server context; the shipped public/vadmin/index.php entrypoint can serve as an execution trampoline.