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.
Metrics
Affected Vendors & Products
References
History
Wed, 27 May 2026 11:15:00 +0000
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Wed, 27 May 2026 10:30:00 +0000
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Devsabbirahmed
Devsabbirahmed firebase Support & Chat Management Wordpress Wordpress wordpress |
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Devsabbirahmed
Devsabbirahmed firebase Support & Chat Management Wordpress Wordpress wordpress |
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| Description | 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. | |
| Title | Firebase Support & Chat Management <= 3.1.1 - Missing Authorization to Authenticated (Subscriber+) Privilege Escalation | |
| Weaknesses | CWE-269 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published:
Updated: 2026-05-27T10:34:45.799Z
Reserved: 2026-05-17T10:38:06.737Z
Link: CVE-2026-8787
Updated: 2026-05-27T10:34:40.683Z
Status : Received
Published: 2026-05-27T07:16:15.060
Modified: 2026-05-27T07:16:15.060
Link: CVE-2026-8787
No data.
OpenCVE Enrichment
Updated: 2026-05-27T10:07:11Z