CVE-2025-9485

CRITICAL

WordPress OAuth Client <6.26.12 - RCE

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2025-9485. PoCs published by ItsSunshineXD, jFriedli.

AI-analyzed exploit summary The repository contains only a minimal README with no exploit code, technical details, or functional PoC. It is a placeholder with no substantive content.

Description

The OAuth Single Sign On – SSO (OAuth Client) plugin for WordPress is vulnerable to Improper Verification of Cryptographic Signature in versions up to, and including, 6.26.12. This is due to the plugin performing unsafe JWT token processing without verification or validation in the `get_resource_owner_from_id_token` function. This makes it possible for unauthenticated attackers to bypass authentication and gain access to any existing user account - including administrators in certain configurations - or to create arbitrary subscriber-level accounts.

Exploits (2)

github STUB
by ItsSunshineXD · poc
https://github.com/ItsSunshineXD/CVE-2025-9485-PoC

The repository contains only a minimal README with no exploit code, technical details, or functional PoC. It is a placeholder with no substantive content.

Classification
Stub 95%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target: unknown
No auth needed
devstral-2 · analyzed May 30, 2026 Full analysis →
nomisec WORKING POC
by jFriedli · poc
https://github.com/jFriedli/CVE-2025-9485

This repository provides a functional proof-of-concept for CVE-2025-9485, demonstrating an authentication bypass via unsigned JWT tokens. The exploit forges a JWT with 'alg: none' and injects it into an authentication callback to gain unauthorized access.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: Unknown (likely a web application using JWT authentication)
No auth needed
Prerequisites: Admin email address · Valid state parameter for the target application
devstral-2 · analyzed Apr 28, 2026 Full analysis →

Scores

CVSS v3 9.8
EPSS 0.0057
EPSS Percentile 42.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-347
Status published
Products (1)
cyberlord92/OAuth Single Sign On – SSO (OAuth Client) < 6.26.12
Published Oct 04, 2025
Tracked Since Feb 18, 2026