CVE-2026-8787 (GCVE-0-2026-8787)

Vulnerability from cvelistv5 – Published: 2026-05-27 05:31 – Updated: 2026-05-27 10:34
VLAI
Title
Firebase Support & Chat Management <= 3.1.1 - Missing Authorization to Authenticated (Subscriber+) Privilege Escalation
Summary
The Firebase Support & Chat Management plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 3.1.1. This is due to the `firebase_auth()` function authenticating the request as the WordPress user whose email is supplied in the `user_email` POST parameter without verifying ownership of that email (no Firebase ID token signature/issuer/audience verification). This makes it possible for authenticated attackers, with Subscriber-level access and above, to log in as an arbitrary existing user — including an Administrator — by submitting that user's email address to the `acb_firebase_auth` AJAX action, resulting in full account takeover.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-27 10:21 UTC
CWE
  • CWE-269 - Improper Privilege Management
Assigner
Wordfence CNA under the mitre root
CNA scorecard C 65/100 over 2512 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
devsabbirahmed Firebase Support & Chat Management Affected: <= 3.1.1
guessed Create a notification for this product.
Credits
Farrukh Ziyaev
Show details on NVD website
To clipboard 

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