# CVE-2026-58024: Wikimedia Foundation MediaWiki information disclosure in ApiUserrights

Source: https://junglewise.ai/threats/cve-2026-58024-wikimedia-foundation-mediawiki-information-disclosure-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-01. Updated: 2026-07-01  
License: CC BY 4.0 with a link back

CVE-2026-58024 · Severity: info · CVSS 5.1 · Published 2026-07-01

MediaWiki, the software used to power Wikipedia and other collaborative wikis, contains a vulnerability that could allow unauthorized users to view sensitive information. An attacker with a basic user account could potentially access data they are not permitted to see by interacting with the user rights management system. This could lead to the exposure of internal configuration or user-related details, though it does not allow for the modification of data or site takeover.

Technologies: [Wikimedia Foundation MediaWiki](https://junglewise.ai/threats/technologies/mediawiki). Vendors: [Wikimedia Foundation](https://junglewise.ai/threats/vendors/wikimedia-foundation).

## Quick answers

**Is CVE-2026-58024 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-58024 being exploited in the wild.

**How severe is CVE-2026-58024?** Informational severity, with a CVSS score of 5.1, published 1 July 2026.

**Which products and versions are affected?** Wikimedia Foundation MediaWiki Before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

**Is there a fix for CVE-2026-58024?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-58024 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-58024?** Check whether you run Wikimedia Foundation MediaWiki 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

An information disclosure vulnerability (CWE-200) exists in MediaWiki's ApiUserrights.php component. The flaw allows a remote attacker with low privileges (PR:L) to access sensitive information that should be restricted. Exploitation requires some level of user interaction (UI:P) and is facilitated through the API. The vulnerability affects multiple branches of MediaWiki and has been addressed in versions 1.46.0, 1.45.4, 1.44.6, and 1.43.9.

## Affected products

- Wikimedia Foundation MediaWiki Before 1.46.0, 1.45.4, 1.44.6, 1.43.9

## Timeline

- 2026-07-01: advisory: CVE published by Wikimedia Foundation
- 2026-07-01: disclosed: NVD record published

## References

- [https://phabricator.wikimedia.org/T422085](https://phabricator.wikimedia.org/T422085)

## Related threats

- [Mediawiki Wikibase Extension stored cross-site scripting](https://junglewise.ai/threats/cve-2026-100245-improper-neutralization-of-input-during-web-page-generation-xss)
- [Wikimedia Mediawiki UploadWizard DOM XSS in Flickr titles](https://junglewise.ai/threats/cve-2026-100381-improper-neutralization-of-input-during-web-page-generation-xss)
- [MediaWiki Wikibase reflected XSS in Special:SetLabel](https://junglewise.ai/threats/cve-2026-100380-improper-neutralization-of-input-during-web-page-generation-xss)
- [Wikimedia Foundation MediaWiki XSS in Logging and Special Pages](https://junglewise.ai/threats/cve-2026-58037-wikimedia-foundation-mediawiki-xss-in-logging-and-special-pages)
- [Wikimedia Foundation MediaWiki Information Exposure in User API](https://junglewise.ai/threats/cve-2026-58036-wikimedia-foundation-mediawiki-information-exposure-in-user-api)