CVE-2022-2438 json
Broken Link Checker <= 1.11.16 - Authenticated (Admin+) PHAR Deserialization
published 2022-09-06 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-34699
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- managewp broken_link_checker 1.11.17
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 18 mo ago
Exploit prediction
1.81% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
Affected products
- wpmudev Broken Link Checker
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
- Technology feeds
References
-
plugins.trac.wordpress.org
/changeset/2757773/broken-link-checker/trunk/core/core.php?old=2605914&old_path=broken-link-checker%2Ftrunk%2F
patch
-
wordfence.com
/threat-intel/vulnerabilities/id/62fd472e-208b-48db-8f98-3d935c7a678c?source=cve
third-party-advisory
-
wordfence.com
/vulnerability-advisories/#CVE-2022-2438
third-party-advisory
Sources
- CVE List CVE-2022-2438
- NVD CVE-2022-2438
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.