Actively exploited
Listed in CISA’s Known Exploited Vulnerabilities catalog since September 25, 2026.
CVE-2026-87902
WordPress Core Remote File Inclusion Vulnerability
Added to KEV September 25, 2026
Alert details
- Source feed
- CISA KEV
- CVE ID
- CVE-2026-87902
- CWE
- CWE-98
- Affected products
- Core · WordPress Core · WordPress
What happened
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.
What it means for your business
WordPress Core is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-87902). 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. CISA remediation due date: 2026-09-28. If you need help checking exposure, call (864) 335-9223.
Required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
CISA due date: September 28, 2026
Sources
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