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Broken Link Checker < 2.4.12 - Unauthenticated Remote Code Execution

CVE-2026-18937 · broken-link-checker

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Broken Link Checker at a vulnerable version. How SiteRespond intelligence works

Vulnerability
Broken Link Checker < 2.4.12 - Unauthenticated Remote Code Execution
Affected software
broken-link-checker(Plugin)
Affected versions
  • < 2.4.12
Authentication
Unauthenticated
Vulnerability type
Remote code execution
CVE
CVE-2026-18937
Published
21 August 2026
CISA KEV
Not listed in CISA KEV at last catalog refresh
Impact
May allow attackers to run arbitrary code on the server if exploited.
Source

Data imported from Wordfence Intelligence (advisory fd3b95ce-3051-4b41-8bf4-362fa6be6ce5). Methodology and redistribution notes

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