CVE-2026-78851 Path traversal in n/a
Remote attackers can exploit a directory traversal flaw in Grav CMS to access sensitive information via the mediaDirFunc method.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-78851?
CVE-2026-78851 is a medium-severity path traversal vulnerability in n/a, published on 15 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Directory Traversal vulnerability in Grav CMS 2.0.3 through 2.0.6 allows a remote attacker to obtain sensitive information via the GravExtension.php and the mediaDirFunc method.
Which versions are affected by CVE-2026-78851?
How do I fix CVE-2026-78851?
No fix has been published for CVE-2026-78851 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-78851 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-78851 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-hjqx-6v9v-mwvj.