CVE-2022-2438

Broken Link Checker <= 1.11.16 - Authenticated (Admin+) PHAR Deserialization

Published Sep 6, 2022 CVSS 3.1 · 7.2 High EPSS 1.8% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2022-34699 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.
History
Type Values Removed Values Added
Title Broken Link Checker <= 1.11.16 - Authenticated (Admin+) PHAR Deserialization
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Apr 8, 2026, 4:57 PM
Reserved
Jul 15, 2022, 12:00 AM
Status
Modified
Published
Sep 6, 2022, 6:15 PM
Modified
Jun 17, 2026, 4:41 AM