CVE-2026-23698 Vtiger CRM 8.4.0 Authenticated RCE via Module Import File Upload
Administrators can upload malicious PHP files via module import to achieve remote code execution and install persistent web shells.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-23698?
CVE-2026-23698 is a high-severity vulnerability in Vtiger CRM, published on 7 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Vtiger CRM through 8.4.0 contains an authenticated remote code execution vulnerability in the admin module import feature that allows administrator-level attackers to upload arbitrary PHP files by submitting a crafted zip archive through the ModuleManager import function, which extracts contents directly into the modules/ directory under the web root without validating file types beyond the manifest.xml descriptor. Attackers can place executable PHP files in the modules/ directory that become directly accessible via HTTP, bypassing Vtiger's authentication and authorization layer entirely since Apache resolves the path and invokes the PHP interpreter before the application routing layer is involved, resulting in a persistent web shell independent of the originating session.
Weakness: CWE-434
Which versions are affected by CVE-2026-23698?
How do I fix CVE-2026-23698?
No fix has been published for CVE-2026-23698 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-23698 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-23698 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-jf2j-jhvf-rc56.