CVE-2026-101920
Molongui Authorship <= 5.2.12 - Unauthenticated Stored DOM-Based Cross-Site Scripting via Comment href Attribute
- Published
- Updated
- Reserved
- Assigned by
- Wordfence
Description
The Molongui Authorship – Author Boxes, Guest Authors & Co-Authors for WordPress plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'comment (href attribute inside comment content)' parameter in all versions up to, and including, 5.2.12 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is exploitable in the free build because the plugin's author-filter rewriter never appends the ?m_bm=true marker to its own anchors (Plugin::has_pro() returns false), meaning every href the byline script selects and rewrites is fully attacker-controlled.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | High7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
| NVDNVD · Deferred | 3.1 | High7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.30% · top 78% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Weakness
Affected products
References (5)
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1bf63dd3-9fd1-4b72-b7e0-48155312c48f?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/molongui-authorship/tags/5.2.12/assets/js/byline.4cc4.min.js (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/molongui-authorship/tags/5.2.12/includes/author-filters.php#L29 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/molongui-authorship/tags/5.2.12/includes/author-filters.php#L464 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/molongui-authorship/tags/5.3.0/assets/js/byline.849a.min.js (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-101920)Record last updated .