Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Grav CMS versions before 2.0.13 are affected. A logged-in user can run arbitrary commands on the server by abusing a settings field that calls built-in routines: the safety check fails to examine routines named as a pair of values, and an uploaded ZIP archive can then be unpacked into the public web folder as a PHP file that the server executes. The attacker needs only a logged-in session, and the impact is remote code execution as the web server's account. Upgrade to Grav 2.0.13 or later, which is the fixed version listed.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.7 | High | 4.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | CNA (VulnCheck) |
- CISA KEV Not listed.
- EPSS 0.0090, the 60th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 13:55 UTC First seen by agentprime
- 31 Oct 2026, 13:55 UTC Confirmed by OSV