Stackurity Start free trial

CVEs / CVE-2026-87902

CVE-2026-87902: WordPress Core Remote File Inclusion Vulnerability

Are you affected? Check your servers with Stackurity: it lists the software on each server and the vulnerabilities to fix first.

Check your servers with Stackurity Already using Stackurity? Search for CVE-2026-87902

Summary

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, Known Exploited Vulnerabilities catalog

Description

An unauthenticated attacker can make `get_page_template()` page-template resolution include a chosen readable local `.php` file outside the active theme directories. If relevant pre-conditions for both the server and the active theme are met, this can lead to RCE.

The CVE record, via NVD · published 22 Sep 2026 · NVD status: Analyzed

Affected and fixed versions

As stated by the CVE record (from the CNA)
ProductAffectedFixed in
WordPress WordPressbefore 7.1.27.1.2

Exploitation

In CISA KEV since25 Sep 2026
Due date for US federal agencies28 Sep 2026
Used in ransomware campaignsUnknown
Required actionApply 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.

Severity

CVSS 3.18.1 high
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Scored by the CNA (134c704f-9b21-4f2e-91b3-4a467353bcc0)
WeaknessCWE-98

References

Sources

Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.

This product uses data from the NVD API but is not endorsed or certified by the NVD.