Support Board <= 3.8.0 - Unauthenticated Arbitrary File Deletion
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
The Support Board plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the sb_file_delete function in all versions up to, and including, 3.8.0. This makes it possible for attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). An attacker can leverage CVE-2025-4855 vulnerability to exploit this vulnerability unauthenticated.
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-4828
- 2026-10-03 Alias added: GHSA-qq5f-j4wf-xqm8
References
More Schiocco Support Board vulnerabilities
- TI-2025-04348 Support Board <= 3.8.0 - Unauthenticated Authorization Bypass due to Use of Default Secret Key CVSS 3.1CRITICAL 9.8
- TI-2026-04199 SQL Injection vulnerability in Support Board CVSS 4.0HIGH 8.7
- TI-2021-07105 Support Board < 3.3.6 - Arbitrary File Deletion via CSRF CVSS 3.1HIGH 8.1
- TI-2021-07089 Support Board < 3.3.5 - Agent+ Stored Cross-Site Scripting CVSS 3.1MEDIUM 5.4
- TI-2026-04200 Reflected Cross Site Scripting (XSS) vulnerability in Support Board CVSS 4.0MEDIUM 4.8
Sources
- CVE-2025-4828 · CVE Program
- CVE-2025-4828 · NVD
- FIRST EPSS
- GHSA-qq5f-j4wf-xqm8 · GitHub Advisory Database · CC BY 4.0
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