Vulnerability in PiranhaCMS Piranha CMS

[ Why it matters ]Priority signals

• Public proof-of-concept exploit exists (CISA SSVC)

[ Description ]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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/PiranhaCMS/piranha.core/blob/v12.2/core/Piranha.Manager/Controllers/Language…
• github.com/PiranhaCMS/piranha.core/blob/v12.2/core/Piranha.Manager/Services/LanguageSer…
• hackmd.io/@hieuPenguinnn/piranha-cms-manager-language-api-missing-permission
• www.vulncheck.com/advisories/piranha-cms-through-12.2-missing-authorization-in-manager-…