# CVE-2026-30452

> Vulnerability · severity: **MEDIUM** (CVSS 6.5).

## Description

Textpattern CMS 4.9.0 contains a Broken Access Control vulnerability in the article management system that allows authenticated users with low privileges to modify articles owned by users with higher privileges. By manipulating the article ID parameter during the duplicate-and-save workflow in textpattern/include/txp_article.php, an attacker can bypass authorization checks and overwrite content belonging to other users.

## Key facts

- **CVE ID:** CVE-2026-30452
- **Published:** 2026-04-21
- **CVSS severity:** MEDIUM
- **CVSS base score:** 6.5
- **CWE codes:** CWE-284

## Affected products

- `textpattern:textpattern`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-30452

## Citation

> AI Analytics. CVE-2026-30452. Retrieved 2026-07-23 from https://api.ai-analytics.org/cve/CVE-2026-30452. Derived from NIST NVD. Licensed CC0.

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