CVE-2026-87902

Published Sep 22, 2026

Last updated 20 days ago

Exploit known CVSS high 8.1

Ubuntu

SAP

Mobile device

Overview

AI description

Automated description summarized from trusted sources.

CVE-2026-87902 is an unauthenticated path traversal vulnerability found in WordPress Core's page-template resolution mechanism. Specifically, the flaw resides within the `get_page_template()` function in `wp-includes/template.php`, where insufficient handling of encoded traversal elements allows request-derived page information to influence the filename WordPress attempts to resolve as a template. This enables the template loader to include readable PHP files located outside the intended theme directories. This vulnerability can lead to local file inclusion (LFI), and under certain server and theme configurations, it can be escalated to remote code execution (RCE). The issue affects WordPress Core versions 4.7.0 through 7.1.1 and was addressed with the release of WordPress 7.1.2, along with backported fixes for earlier versions.

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.
Source: support@hackerone.com
NVD status: Analyzed
Products: wordpress

Risk scores

CVSS 3.1

Type: Secondary
Base score: 8.1
Impact score: 5.9
Exploitability score: 2.2
Vector string: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: HIGH

Known exploits

Data from CISA

Vulnerability name: WordPress Core Remote File Inclusion Vulnerability
Exploit added on: Sep 25, 2026
Exploit action due: Sep 28, 2026
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.

Weaknesses

support@hackerone.com: CWE-98

Hype score: Not currently trending

Configurations

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References

Sources include official advisories and independent security research.