CVE-2025-5396: CWE-94 Improper Control of Generation of Code ('Code Injection') in Bearsthemes Bears Backup
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.
AI Analysis
Technical Summary
The Bears Backup plugin for WordPress contains a remote code execution vulnerability (CWE-94) due to improper control of code generation in the bbackup_ajax_handle() function. This function does not perform capability checks nor validate user-supplied input before passing it to call_user_func(), enabling unauthenticated attackers to execute arbitrary code on the server. This vulnerability affects all versions up to and including 2.0.0. On sites using the Alone theme version 7.8.4 and older, this vulnerability can be chained with CVE-2025-5394 to install the Bears Backup plugin and escalate impact. The vulnerability is publicly disclosed with a CVSS 3.1 score of 9.8 (critical). No patch or remediation details are currently available.
Potential Impact
Successful exploitation allows unauthenticated remote attackers to execute arbitrary code on the affected server. This can lead to installation of backdoors, creation of new administrative user accounts, and full compromise of the WordPress site. The vulnerability is critical with high confidentiality, integrity, and availability impacts as indicated by the CVSS score of 9.8.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, it is recommended to disable or remove the Bears Backup plugin if possible. Monitor official Bearsthemes communications for updates and apply patches promptly once released. Avoid exposing vulnerable WordPress installations to untrusted networks.
CVE-2025-5396: CWE-94 Improper Control of Generation of Code ('Code Injection') in Bearsthemes Bears Backup
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Bears Backup plugin for WordPress contains a remote code execution vulnerability (CWE-94) due to improper control of code generation in the bbackup_ajax_handle() function. This function does not perform capability checks nor validate user-supplied input before passing it to call_user_func(), enabling unauthenticated attackers to execute arbitrary code on the server. This vulnerability affects all versions up to and including 2.0.0. On sites using the Alone theme version 7.8.4 and older, this vulnerability can be chained with CVE-2025-5394 to install the Bears Backup plugin and escalate impact. The vulnerability is publicly disclosed with a CVSS 3.1 score of 9.8 (critical). No patch or remediation details are currently available.
Potential Impact
Successful exploitation allows unauthenticated remote attackers to execute arbitrary code on the affected server. This can lead to installation of backdoors, creation of new administrative user accounts, and full compromise of the WordPress site. The vulnerability is critical with high confidentiality, integrity, and availability impacts as indicated by the CVSS score of 9.8.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, it is recommended to disable or remove the Bears Backup plugin if possible. Monitor official Bearsthemes communications for updates and apply patches promptly once released. Avoid exposing vulnerable WordPress installations to untrusted networks.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- Wordfence
- Date Reserved
- 2025-05-30T16:17:17.008Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 68785ceca83201eaace0cbd8
Added to database: 7/17/2025, 2:16:12 AM
Last enriched: 4/9/2026, 5:34:14 PM
Last updated: 5/9/2026, 2:13:46 PM
Views: 220
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