CVE-2026-30452
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductTextpattern
PublishedApr 21, 2026
First seenApr 21, 2026
Weakness typeCWE-284Improper access control
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| textpattern textpattern | 4.9.0 | — |
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