CVE-2026-54612
High · CVSS 8.8Published 2026-09-17
CVSS
8.8
High
EPSS
—
exploit probability
Active Exploit
No
not yet listed
What is CVE-2026-54612?
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 file_put_contents() 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.
CVSS Score Explained
CVSS 8.8 is High severity. Exploitation is likely straightforward and the impact is significant — data loss, privilege escalation, or remote code execution are common outcomes. Patch as soon as possible.
EPSS Exploitation Probability
No EPSS score yet — model needs more data on this CVE.
References & Patches
- ›https://github.com/givanz/Vvveb/commit/c8fef41ad8651d348050c513451755ab8882b97e
- PATCHhttps://github.com/givanz/Vvveb/releases/tag/1.0.8.5
- ›https://github.com/givanz/Vvveb/security/advisories/GHSA-c3v9-3xrq-pvqv
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