Broken Link Checker <= 2.4.0 - Reflected Cross-Site Scripting
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-80.
Summary
The Broken Link Checker plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg in /app/admin-notices/features/class-view.php without appropriate escaping on the URL in all versions up to, and including, 2.4.0. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-8981
- 2026-10-03 Alias added: GHSA-jxg7-pw76-5mph
References
Other 3
- https://www.wordfence.com/threat-intel/vulnerabilities/id/429fe34a-5fa9-4032-9b21-4de114dbc9d1?source=cve
- https://plugins.trac.wordpress.org/changeset/3159860/broken-link-checker/trunk/app/admin-notices/features/class-view.php
- https://plugins.trac.wordpress.org/browser/broken-link-checker/tags/2.4.0/app/admin-notices/features/class-view.php#L43
More wpmudev vulnerabilities
- TI-2023-04240 Forminator <= 1.24.6 - Unauthenticated Arbitrary File Upload CVSS 3.1CRITICAL 9.8
- TI-2023-04683 Defender Security < 4.1.0 - Protection Bypass (Hidden Login Page) CVSS 3.1MEDIUM 5.3
- TI-2026-13248 Forminator Forms <= 1.56.1 - Unauthenticated Arbitrary File Upload via Forged Upload Field Configuration CVSS 3.1CRITICAL 9.8
- TI-2025-05864 Forminator Forms – Contact Form, Payment Form & Custom Form Builder <= 1.44.2… CVSS 3.1HIGH 8.8
- TI-2024-20466 SQL injection in wpmudev Forminator CVSS 3.1HIGH 7.2
- TI-2024-07873 Hustle < 7.8.5 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8
Sources
- CVE-2024-8981 · CVE Program
- CVE-2024-8981 · NVD
- FIRST EPSS
- GHSA-jxg7-pw76-5mph · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences