Vulnerability · Published Jun 29, 2026 · Assigned by VulDB
CVE-2026-13533agentejo Cockpit CMS htaccess config.yaml YAMLLoad file access
Medium 5.3
In plain English
A medium-severity security flaw in Cockpit CMS from agentejo. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).
Official description
A security vulnerability has been detected in agentejo Cockpit CMS up to 0.12.2. Affected by this issue is the function Spyc::YAMLLoad of the file /config/config.yaml of the component htaccess Handler. Such manipulation leads to files or directories accessible. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. Configuration settings should be changed. The vendor was contacted early about this disclosure but did not respond in any way.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| agentejo | Cockpit CMS | 0.12.00.12.10.12.2 |
Weakness: CWE-552, CWE-425 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:W/RC:R
References
- VDB-374541 | agentejo Cockpit CMS htaccess config.yaml YAMLLoad file access vdb-entry, technical-description
- VDB-374541 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-13533 | CVE Analysis and Report third-party-advisory
- Submit #841343 | Agentejo Cockpit CMS 0.12.2 CWE-552: Files or Directories Accessible to External Parties third-party-advisory
- https://gist.github.com/nov-1337/3eb0a06c602ced9c3b11b675b53947da exploit