Bears Backup <= 2.0.0 - Unauthenticated Remote Code Execution
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-94.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Bearsthemes | Bears Backup | up to 2.0.0 | — | No fix listed | CNA |
- Bears Backup VendorBearsthemes Affected up to 2.0.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-5396
- 2026-10-03 Alias added: GHSA-mr9j-vgmq-cxhq
References
More Bearsthemes vulnerabilities
- TI-2025-04846 Missing authorization in Bearsthemes Alone – Charity Multipurpose Non-profit WordPress… CVSS 3.1CRITICAL 9.8
- TI-2025-09787 Missing authorization in Bearsthemes Goza - Nonprofit Charity WordPress Theme CVSS 3.1CRITICAL 9.8
- TI-2025-04845 Alone – Charity Multipurpose Non-profit WordPress Theme <= 7.8.5 - Missing Authorization… CVSS 3.1CRITICAL 9.1
- TI-2026-01024 Worry Proof Backup <= 0.2.4 - Authenticated (Subscriber+) Path Traversal via Backup Upload CVSS 3.1HIGH 8.8
- TI-2025-09306 Goza - Nonprofit Charity WordPress Theme <= 3.2.2 - Missing Authorization to Unauthenticated Arbitrary File Deletion CVSS 3.1CRITICAL 9.1
- TI-2023-17866 WordPress Sermon'e – Sermons Online Plugin <= 1.0.0 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1MEDIUM 6.5
Sources
- CVE-2025-5396 · CVE Program
- CVE-2025-5396 · NVD
- FIRST EPSS
- GHSA-mr9j-vgmq-cxhq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences