CVE-2024-5488
Published: 09 July 2024
Summary
CVE-2024-5488 is a critical-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Seopress Seopress. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 1.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
The SEOPress WordPress plugin before version 7.9 is affected by improper access controls on certain REST API routes. When combined with a separate object injection flaw (CWE-502), the issue permits unauthenticated deserialization of attacker-supplied gadget chains, resulting in a CVSS 9.8 rating that reflects network-exploitable impact on confidentiality, integrity, and availability.
An unauthenticated remote attacker can invoke the unprotected routes to supply malicious serialized objects. Successful exploitation requires the presence of a usable gadget chain within the WordPress installation and can fully compromise the site.
Public references published by WPScan detail the affected endpoints and the conditions under which the vulnerability can be triggered, indicating that administrators should apply the vendor fix released in SEOPress 7.9.
The associated EPSS score has remained elevated since disclosure, with a current value of 0.7186 and a recorded peak of 0.7480.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-46698
Vulnerability details
The SEOPress WordPress plugin before 7.9 does not properly protect some of its REST API routes, which combined with another Object Injection vulnerability can allow unauthenticated attackers to unserialize malicious gadget chains, compromising the site if a suitable chain is…
more
present.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing supplies malicious serialized objects, detecting unsafe deserialization and supporting corrective actions.
Evaluation of untrusted data handling (deserialization testing) reveals unsafe processing, which the required remediation process addresses.
Untrusted serialized data can be deserialized and observed inside the chamber, blocking gadget-chain exploitation outside the sandbox.
Validates or rejects untrusted serialized data before deserialization occurs.
Identifies and blocks malicious code introduced through deserialization of untrusted data at system boundaries.
Integrity verification of serialized information can detect tampering before deserialization occurs.
Provenance of associated data allows detection of untrusted sources before deserialization or processing occurs.