Risk Letters

Exploited vulnerability

CVE-2026-87902

TLP:CLEAR

WordPress Core Remote File Inclusion Vulnerability

WordPress Core contains a remote file inclusion vulnerability which could allow an unauthenticated attacker to make page-template resolution include a chosen readable local `.php` file outside the active theme directories, leading to remote code execution.

Facts

  • Vendor: WordPress
  • Product: Core
  • CVSS: 8.1
  • EPSS (probability of exploitation within 30 days): 95.8 %
  • On CISA's Known Exploited Vulnerabilities list since: 25 September 2026
  • First known exploitation: 22 September 2026
  • CISA's deadline for US federal agencies: 28 September 2026
  • Weakness: CWE-98
  • First seen by Risk Letters: 25 September 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD