CVE-2022-2438

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.

Score

CVSS 3.1 7.2 High

Status

Modified - security@wordfence.com

Published

2022-09-06

Last modified

2026-04-08

Weaknesses

CWE-502

Affected products

• Broken Link Checker (Managewp)
• Broken Link Checker (Wpmudev)

References

• https://plugins.trac.wordpress.org/changeset/2757773/broken-link-checker/trunk/core/core.php?old=2605914&old_path=broke…
• https://www.wordfence.com/threat-intel/vulnerabilities/id/62fd472e-208b-48db-8f98-3d935c7a678c?source=cve
• https://www.wordfence.com/vulnerability-advisories/#CVE-2022-2438