Vulnerabilities / Molongui Authorship / WPSEC-2026-0631
Molongui Authorship <= 5.2.12 - Authenticated (Contributor+) Stored DOM-Based Cross-Site Scripting via Byline Link Processing
Medium 5.4
CWE-79Fixed in 5.3.0
- ID
- WPSEC-2026-0631
- Plugin
- Molongui Authorship – Author Boxes, Guest Authors & Co-Authors for WordPress (molongui-authorship)
- Affected
- from 4.0.0 before 5.3.0
- Remediation
- Update to 5.3.0 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-10-08
- Attack surface
- Molongui Authorship on WPSec AttackSurface
- Fix released
- Published
Description
The Molongui Authorship plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via its byline link processing in versions 4.0.0 up to, and including, 5.2.12. The plugin's front-end byline script URL-decodes the targets of matching links on the page and writes them back without validating the resulting URL protocol. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute when a user clicks the injected link.
References
- https://wpsec.com/vuln/WPSEC-2026-0631/
- https://plugins.svn.wordpress.org/molongui-authorship/tags/5.3.0/
- https://wordpress.org/plugins/molongui-authorship/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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