CVE-2026-106013 Jupiter X Core <= 4.61.0 - Unauthenticated Authentication Bypass via Twitter/X Social Login oauth_verifier Parameter
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-106013?
CVE-2026-106013 is a critical vulnerability in artbees Jupiter X Core, published on 28 Oct 2026.
Official description
The Jupiter X Core plugin for WordPress is vulnerable to Authentication Bypass via the Twitter/X Social Login handler in all versions up to and including 4.61.0. The vulnerability exists within the verify_twitter_callback function because after exchanging the visitor's oauth_verifier for their access token, the handler never calls setOauthToken() to reassign the returned credentials to the TwitterOAuth client, causing the subsequent account/verify_credentials API call to remain signed with the site operator's stored Access Token and Access Token Secret rather than the authenticating visitor's token. This causes the X API to return the profile of the X application owner instead of the signing-in visitor, and the plugin then resolves and authenticates a WordPress account solely by matching that owner's email address via wp_set_auth_cookie(), allowing unauthenticated attackers to gain authenticated access as the WordPress user whose email corresponds to the X app owner, who is typically the site administrator.
Weakness: CWE-287
Which versions are affected by CVE-2026-106013?
How do I fix CVE-2026-106013?
No fix has been published for CVE-2026-106013 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-106013 being exploited?
There is no known exploitation of CVE-2026-106013 in the wild and no public exploit code.
Sources
Also known as GHSA-5x75-7jgc-v7c2.