CVE-2025-9501

CVE-2025-9501 is a critical-severity vulnerability with a CVSS 3.x base score of 9.0. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

The W3 Total Cache WordPress plugin before 2.8.13 is vulnerable to command injection via the _parse_dynamic_mfunc function, allowing unauthenticated users to execute PHP commands by submitting a comment with a malicious payload to a post.

Frequently asked questions

What is CVE-2025-9501?
The W3 Total Cache WordPress plugin before 2.8.13 is vulnerable to command injection via the _parse_dynamic_mfunc function, allowing unauthenticated users to execute PHP commands by submitting a comment with a malicious payload to a post.
How severe is CVE-2025-9501?
CVE-2025-9501 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-9501 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-9501?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-9501 have an EU (EUVD) identifier?
Yes. CVE-2025-9501 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-197764.
When was CVE-2025-9501 published?
CVE-2025-9501 was published on 2025-11-17 and last updated on 2026-06-17.

References