Description

The GB Forms DB plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.0.2 via the gbfdb_talk_to_front() function. This is due to the function accepting user input and then passing that through call_user_func(). This makes it possible for unauthenticated attackers to execute code on the server which can be leverage to inject backdoors or create new administrative user accounts to name a few things.

Classification

CVE ID: CVE-2025-5392

CVSS Base Severity: CRITICAL

CVSS Base Score: 9.8

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products

Vendor: gb-plugins

Product: GB Forms DB

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.24% (probability of being exploited)

EPSS Percentile: 46.5% (scored less or equal to compared to others)

EPSS Date: 2025-07-16 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-5392
https://www.wordfence.com/threat-intel/vulnerabilities/id/fe8723a7-bbb1-41a0-b222-3cf4eb44cd64?source=cve
https://plugins.trac.wordpress.org/browser/gb-forms-db/trunk/core/functions.php#L334
https://plugins.trac.wordpress.org/browser/gb-forms-db/trunk/core/functions.php#L367
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3323703%40gb-forms-db&new=3323703%40gb-forms-db&sfp_email=&sfph_mail=

Timeline