CVE-2024-8981
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
- EPSS
- 0.50% probability · 41th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-80
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/browser/broken-link-checker/tags/2.4.0/app/admin-notices/features/class-view.php#L43
- https://plugins.trac.wordpress.org/changeset/3159860/broken-link-checker/trunk/app/admin-notices/features/class-view.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/429fe34a-5fa9-4032-9b21-4de114dbc9d1?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.