Vulnerability · Published Jul 17, 2025 · Assigned by Wordfence
CVE-2025-5396Bears Backup <= 2.0.0 - Unauthenticated Remote Code Execution
Critical 9.8
In plain English
A critical-severity code injection in Bears Backup from Bearsthemes. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities).
Official description
The Bears Backup plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.0.0. This is due to the bbackup_ajax_handle() function not having a capability check, nor validating user supplied input passed directly to 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. On WordPress sites running the Alone theme versions 7.8.4 and older, this can be chained with CVE-2025-5394 to install the Bears Backup plugin and achieve the same impact.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Bearsthemes | Bears Backup | 0 – through 2.0.0 |
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H