CVE-2025-0855
Published: 06 May 2025
Summary
CVE-2025-0855 is a critical-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Potenzaglobalsolutions (inferred from references). Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 14.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The PGS Core plugin for WordPress is vulnerable to PHP Object Injection in all versions through 5.8.0. The flaw stems from unsafe deserialization of untrusted input inside the import_header function, which permits an attacker to supply a serialized PHP object. The issue is tracked as CWE-502 and carries a CVSS 3.1 score of 9.8.
Unauthenticated attackers can trigger the vulnerability over the network without user interaction. While no POP chain exists in PGS Core itself, the presence of a compatible chain in another plugin or theme on the same site could allow arbitrary file deletion, disclosure of sensitive data, or remote code execution.
Public references include the vendor changelog and a Wordfence advisory that document the affected versions; administrators should consult these sources for available updates. The associated EPSS score has remained flat at 0.0256 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-13649
Vulnerability details
The PGS Core plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 5.8.0 via deserialization of untrusted input in the 'import_header' function. This makes it possible for unauthenticated attackers to inject a PHP…
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Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
- 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.