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CVE-2026-30452 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/textpattern/textpattern	[email protected]	Product
https://textpattern.com/weblog/textpattern-491-released-security-fixes-patches-and-tweaks	[email protected]	Release Notes

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-284	Improper Access Control	CISA-ADP

Affected Products

Product	Versions
textpattern textpattern	4.9.0 -
CPE cpe:2.3:a:textpattern:textpattern:4.9.0:-:::::: Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
May 13, 2026	Initial Analysis	[email protected]
Apr 22, 2026	CVE Modified	CISA-ADP
Apr 21, 2026	New CVE Received	[email protected]