Is CVE-2026-30452 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-30452 being exploited in the wild.

How severe is CVE-2026-30452?

Medium severity, with a CVSS score of 6.5, published 21 April 2026.

Is there a fix for CVE-2026-30452?

A patch was published on 2026-02-14: Textpattern 4.9.1 released to address the access control regression. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-30452 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-30452?

Check whether you run Textpattern or Textpattern CMS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-30452: Textpattern CMS broken access control in article management

CVE-2026-30452 · Severity: medium · CVSS 6.5 · Published 2026-04-21

Textpattern CMS, a platform used for building and managing websites, contains a security flaw in its article management system. This vulnerability allows a logged-in user with low-level permissions to modify or overwrite articles created by administrators or other high-privileged users. This could lead to unauthorized content changes, website defacement, or the loss of important editorial data.

Technologies: Textpattern CMS. Vendors: Textpattern.

Quick answers

Is CVE-2026-30452 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-30452 being exploited in the wild.
How severe is CVE-2026-30452?: Medium severity, with a CVSS score of 6.5, published 21 April 2026.
Which products and versions are affected?: Textpattern CMS 4.9.0.
Is there a fix for CVE-2026-30452?: A patch was published on 2026-02-14: Textpattern 4.9.1 released to address the access control regression. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-30452 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-30452?: Check whether you run Textpattern or Textpattern CMS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A broken access control vulnerability exists in Textpattern CMS 4.9.0 within the article management workflow. The flaw is located in 'textpattern/include/txp_article.php' and stems from an improper authorization check during the 'duplicate-and-save' process. By manipulating the article ID parameter in a web request, an authenticated attacker with low-level privileges can bypass ownership restrictions to overwrite content belonging to other users, including those with higher administrative roles. This issue was identified as a regression in version 4.9.0 and has been resolved in version 4.9.1.

Affected products

Textpattern Textpattern CMS 4.9.0

Timeline

2026-02-14: patched: Textpattern 4.9.1 released to address the access control regression.
2026-04-21: disclosed: CVE-2026-30452 published.

References

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