CVE-2026-111665 Piranha CMS through 12.2 Missing Authorization in Manager Language API
Authenticated manager users can modify site languages without specific permissions, potentially disrupting localized content across the instance.
- 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-2026-111665?
CVE-2026-111665 is a medium-severity missing authorization vulnerability in PiranhaCMS Piranha CMS, published on 16 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Piranha CMS through 12.2 contains a missing authorization vulnerability in the Piranha.Manager LanguageApiController that allows any authenticated manager user to list, create, edit and delete site languages without the granular Language, LanguageAdd, LanguageEdit or LanguageDelete permissions. Attackers can call the manager/api/language Get, Save and Delete actions directly to remove languages and reassign sites to the default, affecting localized content instance-wide.
Weakness: CWE-862
Which versions are affected by CVE-2026-111665?
How do I fix CVE-2026-111665?
No fix has been published for CVE-2026-111665 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-111665 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111665 exists.
Sources
Also known as GHSA-8995-w3f5-5qpr.