CVE-2022-2438: high-severity vulnerability in wpmudev Broken Link Checker
Broken Link Checker <= 1.11.16 - Authenticated (Admin+) PHAR Deserialization
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.2epss 1.8%
The Broken Link Checker plugin for WordPress is vulnerable to deserialization of untrusted input via the '$log_file' value in versions up to, and including 1.11.16. This makes it possible for authenticated attackers with administrative privileges and above to call files using a PHAR wrapper that will deserialize the data and call arbitrary PHP Objects that can be used to perform a variety of malicious actions granted a POP chain is also present. It also requires that the attacker is successful in uploading a file with the serialized payload.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
wpmudev · Broken Link CheckerRelated CVEs — wpmudev Broken Link Checker
In the same product, most dangerous first.
CVE-2026-75528HIGHBroken Link Checker <= 2.4.13 - Unauthenticated Stored Cross-Site Scripting via Comment Author URL / Link LogEPSS 0.5%CVE-2024-8981HIGHBroken Link Checker <= 2.4.0 - Reflected Cross-Site ScriptingEPSS 0.5%CVE-2025-4047MEDIUMBroken Link Checker <= 2.4.4 - Missing Autorization to Authenticated (Subscriber+) Plugin Status Dashboard ViewEPSS 0.3%CVE-2026-96562MEDIUMBroken Link Checker <= 2.4.14.1 - Unauthenticated Arbitrary Shortcode Execution via parser_callbackEPSS 0.3%
References
https://plugins.trac.wordpress.org/changeset/2757773/broken-link-checker/trunk/core/core.php?old=2605914&old_path=broken-link-checker%2Ftrunk%2Fcore%2Fcore.phphttps://www.wordfence.com/threat-intel/vulnerabilities/id/62fd472e-208b-48db-8f98-3d935c7a678c?source=cvehttps://www.wordfence.com/vulnerability-advisories/#CVE-2022-2438