Deserialization in Managewp Broken Link Checker
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.
Vulnerability class: Insecure Deserialization
EPSS: 0.014 (69.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Patch)
- security@wordfence.com (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-2438?
- CVE-2022-2438 is a high-severity vulnerability in Managewp Broken Link Checker, classified under Deserialization of Untrusted Data. CVSS score: 7.2/10. Published 2022-09-06.
- How severe is CVE-2022-2438?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2022-2438 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.