EUVD-2026-84555Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Unauthenticated network request (AV:N/PR:N/UI:N) but exploitation depends on specific server and active-theme preconditions (AC:H); successful inclusion yields code execution with full CIA impact.
Primary rating from Vendor (hackerone).
CVSS VectorVendor: hackerone
Lifecycle Timeline
6DescriptionCVE.org
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.
Articles & Coverage 1
AnalysisAI
Unauthenticated remote attackers can manipulate WordPress core's get_page_template() page-template resolution so that it includes a chosen, readable local .php file residing outside the active theme directories; where the required server and active-theme preconditions are both satisfied, that include escalates to remote code execution. The issue carries a CVSS 3.1 score of 8.1 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H), with the high attack complexity reflecting the need for a suitable readable PHP file and matching environment conditions rather than any authentication or user-interaction barrier. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation targets WordPress core's get_page_template() page-template resolution and requires the attacker to influence which .php file is included so that a readable local file outside the active theme directories is loaded. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a WordPress core issue (per the WordPress/wordpress-develop GHSA-7hp8-65ch-5whp advisory), affecting the get_page_template() page-template resolution path. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Patch status for CVE-2026-87902 is not confirmed from the available data - no fixed version number is provided - so defensible guidance is to treat the WordPress core advisory GHSA-7hp8-65ch-5whp (https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-7hp8-65ch-5whp) as the authoritative source and upgrade WordPress core to the earliest release it identifies as patched, verifying the fix against that advisory rather than any version number inferred here. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory every WordPress core instance across the estate (self-hosted and managed) and record exact core version, active theme, and PHP/webserver configuration; prioritize any internet-facing site where a readable .php file exists outside the active theme directories, and confirm whether open_basedir, disable_functions, or PHP-FPM chroot restrictions are in place. …
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Same weakness CWE-98 – PHP Remote File Inclusion
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External POC / Exploit Code
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