Broken Link Checker <= 2.4.0 — Reflected Cross-Site Scripting
CVE-2024-8981Published · Updated Action summary
Affected: ≤2.4.0Update to 2.4.1 or newer
All remediation steps- Severity
- High7.1
- CVSS
- 7.1CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:LWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:RUser interaction- Required
S:CScope- Changed
C:LConfidentiality- Low
I:LIntegrity- Low
A:LAvailability- Low
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Broken Link Checker broken-link-checker
- Affected≤ 2.4.0
- Patched in2.4.1
Update to 2.4.1 or newer.
You are affected if you run ≤ 2.4.0. Version 2.4.1 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Broken Link Checker.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 2.4.1, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Broken Link Checker to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to vgo0.
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.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Broken Link Checker
All 17| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.5 | Unauthenticated Arbitrary Shortcode Execution via parser_callback ≤2.4.14.1Update to 2.4.15 | CVE-2026-96562 | |
| Medium5.3 | Unauthenticated Arbitrary HTML Attribute Injection ≤2.4.14.1Update to 2.4.15 | CVE-2026-102389 | |
| Medium5.5 | Authenticated (Editor+) Server-Side Request Forgery ≤2.4.14Update to 2.4.14.1 | CVE-2026-84772 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment Author URL / Link Log ≤2.4.13Update to 2.4.13.1 | CVE-2026-75528 | |
| Critical9.8 | Unauthenticated Remote Code Execution <2.4.12Update to 2.4.12 | CVE-2026-18937 |
- Medium6.5Unauthenticated Arbitrary Shortcode Execution via parser_callback
≤2.4.14.1Update to 2.4.15
- Medium5.3Unauthenticated Arbitrary HTML Attribute Injection
≤2.4.14.1Update to 2.4.15
- Medium5.5Authenticated (Editor+) Server-Side Request Forgery
≤2.4.14Update to 2.4.14.1
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment Author URL / Link Log
≤2.4.13Update to 2.4.13.1
- Critical9.8Unauthenticated Remote Code Execution
<2.4.12Update to 2.4.12
Timeline
CVE published
Severity high, CVSS 7.1
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.