⚠ Known Exploited Vulnerability (KEV) Tracker

Description

The Simple-File-List Plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 4.2.2 via the rename function which can be used to rename uploaded PHP code with a png extension to use a php extension. This allows unauthenticated attackers to execute code on the server.

Lifecycle Timeline

• 2020-04-27
  Public exploit code

  Metasploit — WordPress Simple File List Unauthenticated Remote Code Execution

  Metasploit →
• 2025-07-12
  CVE published 5.2 years later

  Entered the public CVE record.

  CVE.org →
• 2025-10-11
  EPSS flags exploitation risk 3 months later

  Probability rose past 10%, from 6.1% to 82.9%. Dated to the sampled week.

  FIRST EPSS →
• 2026-07-09
  First national advisory 9 months later

  ASD/ACSC — CRITICAL ALERT: Large-scale exploitation campaign targeting website content management systems (CMS)

  CyberzSOC advisory index →
• not recorded
  Added to CISA KEV

  Not in the CISA KEV catalog.
• not recorded
  Federal remediation due

  No remediation deadline set.
• not recorded
  Vendor fix published

  No dated vendor fix. Only Microsoft publishes a machine-readable release date; other vendors state a fixed version without one.

Each milestone comes from a different source, so gaps between them are gaps in what those sources publish, not evidence that nothing happened. EPSS history for this CVE holds 75 points from 2025-07-12, tracked daily from 2026-09-09; earlier points are weekly, which dates a spike to within a week. Peak probability 89.3% on 2026-05-09.

Published Applicability

Check whether a specific version is affected →

What each source publishes about which product versions carry this vulnerability, kept as written rather than merged. Absence here means no source has published applicability data, not that nothing is affected.

Research & News Coverage

No mentions found in monitored research blogs or news feeds.

Detection & Exploitation

Coverage across public collections only: Nuclei and OpenVAS NVT (scan); Snort and Suricata ET Open (network); Sigma and YARA (host/SIEM); Metasploit, Exploit-DB and public GitHub repositories (exploit). Absence here means nothing public was found, not that detection is impossible.
GitHub PoC repositories are collected automatically by PoC-in-GitHub (CC0) and are not vetted: some are fakes and some are malware. Treat them as evidence that code was published, not as code to run.
OpenVAS coverage derives from the Greenbone Community Feed, made available under the Open Database License (ODbL) v1.0; its individual Vulnerability Tests are licensed GNU GPL v2.

CISA Assessment (Vulnrichment / SSVC)

D3FEND Countermeasures

Defensive techniques inferred by MITRE D3FEND from the underlying weakness (CWE-434) — general hardening and detection guidance for this weakness class, not a vendor patch for this specific CVE.

Listed By

Referenced in Advisories

Weaponization Timeline — Offensive & Testing Tools

No exploit-tool sightings recorded for this CVE.

Evidence tiers are explained on the About page — a merged Metasploit module is far stronger evidence than a distro package mention.

External References

CVE.org record → NVD entry → FortiGuard Labs → Rapid7 AttackerKB →