Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Grav (Packagist getgrav/grav) versions before 1.7.53 are affected. The admin backup feature creates a ZIP of the full Grav installation, including the admin account file with password hash and the configuration directory, and the download endpoint relies only on the session-static admin nonce with no form-level token. An attacker who obtains an admin nonce, for example through Referrer leakage, browser history, or XSS, could download the archive and attempt to crack the password hash offline. The fix is to upgrade to version 1.7.53.
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 |
|---|---|---|---|---|
| 6.8 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0022, the 12th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 13:58 UTC First seen by agentprime
- 31 Oct 2026, 13:58 UTC Confirmed by OSV