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CVE-2026-106013 – Authentication Bypass – Jupiter X Core WordPress Plugin <= 4.61.0

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Summary

CVE-2026-106013 is a critical authentication bypass vulnerability (CWE-287, Improper Authentication) in the Jupiter X Core WordPress plugin by Artbees, in its Twitter/X Social Login handler. It is rated CVSS 9.8 (Critical) and affects versions up to and including 4.61.0.

Technical details

  • Root cause: improper OAuth token handling in the verify_twitter_callback function of the Twitter/X social login handler. The code uses the site operator’s stored credentials rather than the visitor’s token.
  • Trigger conditions: the vulnerable Twitter/X Social Login handler is reachable on the affected plugin version.
  • Attack vector: network, low attack complexity, no privileges and no user interaction required.
  • Impact: authentication bypass, with high impact to confidentiality, integrity and availability.

Affected software

  • Jupiter X Core (artbees) versions 0 through 4.61.0

Severity

  • CVSS v3.1 base score: 9.8 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: update Jupiter X Core to a release later than 4.61.0 as soon as the vendor provides one. A specific fixed version was not confirmed in the sources reviewed. Check the vendor and the Wordfence entry for the current fixed version.
  • If no patch is available: disable the Twitter/X social login feature if it is not needed. Restrict access to the affected login callback where possible, and review the site for unexpected logins or new administrator accounts.

References

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