Threat Intelligence / CVE / CVE-2025-9501

CVE-2025-9501 — W3 Total Cache

CVSS v3.1 9 (CRITICAL) · EPSS 3.1% (higher than 87.0% of all scored CVEs) · Priority 8/10 · Published 2025-11-17

As of 2026-04-15, CVE-2025-9501 is a CRITICAL-severity vulnerability in W3 Total Cache, CVSS v3.1 9, EPSS 3.1% (87.0th percentile). Threadlinqs Intelligence links 3 tracked threat campaigns to CVE-2025-9501, most recently “PCPJack Worm — Cloud Credential Theft Framework Evicting TeamPCP Infections (CVE-2025-29927, CVE-2025-55182, CVE-2026-1357, CVE-2025-9501, CVE-2025-48703)”.

Last updated: 2026-04-15

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.

Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 300 days ago.

Severity and exploitation probability

CVSS v3.1 base score: 9 — CRITICAL
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS (FIRST): 3.1% probability of exploitation in the next 30 days, higher than 87.0% of all scored CVEs
CISA KEV: Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority: 8/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published: 2025-11-17, last modified 2026-04-15

Is CVE-2025-9501 being exploited?

It currently carries a trending score of 27 in the Threadlinqs vulnerability feed.

Affected products and versions

(vendor unspecified): W3 Total Cache

How to fix CVE-2025-9501

The record marks a vendor fix as available for CVE-2025-9501. Vendor advisory: https://wpscan.com/vulnerability/6697a2c9-63ae-42f0-8931-f2e5d67d45ae/. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

Threat activity tracking CVE-2025-9501

3 tracked threats in the Threadlinqs corpus reference CVE-2025-9501, either in the campaign’s CVE list or as an indicator on the campaign record.

PCPJack Worm — Cloud Credential Theft Framework Evicting TeamPCP Infections (CVE-2025-29927, CVE-2025-55182, CVE-2026-1357, CVE-2025-9501, CVE-2025-48703) — CRITICAL · 2026-05-07
Bissa Scanner — AI-Assisted Mass Exploitation of CVE-2025-55182 (React Server Components RCE) and CVE-2025-9501 (W3 Total Cache) — CRITICAL · 2026-04-27
Bissa Scanner — AI-Assisted Mass Exploitation and Credential Harvesting Campaign (@BonJoviGoesHard / Dr. Tube) — HIGH · 2026-04-22

Sources

Seeded from nvd and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent.

wpscan.com

Full detection coverage & IOCs for threats exploiting CVE-2025-9501 are available via the Threadlinqs MCP server (Purple tier). View plans →

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