Deserialization in Wordpressdotorg WordPress Importer
CVE-2024-13889
The WordPress Importer plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 0.8.3 via deserialization of untrusted input in the 'maybe_unserialize' function. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
Vulnerability class: Insecure Deserialization
EPSS: 0.007 (49.8th 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
- Wordpressdotorg Wordpress Importer — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2024-13889?
- CVE-2024-13889 is a high-severity vulnerability in Wordpressdotorg WordPress Importer, classified under Deserialization of Untrusted Data. CVSS score: 7.2/10. Published 2025-03-26.
- How severe is CVE-2024-13889?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2024-13889 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.