CVE-2025-4828: critical vulnerability in Schiocco Support Board
Support Board <= 3.8.0 - Unauthenticated Arbitrary File Deletion
Published · Updated
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 0.9%
exploitation probability
0.9%top 42% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Schiocco · Support BoardRelated CVEs — Schiocco Support Board
In the same product, most dangerous first.
CVE-2025-54031HIGHWordPress Support Board <= 3.8.0 - Local File Inclusion VulnerabilityEPSS 0.7%CVE-2026-27395CRITICALWordPress Support Board plugin < 3.8.9 - Privilege Escalation vulnerabilityEPSS 0.5%CVE-2025-4855CRITICALSupport Board <= 3.8.0 - Unauthenticated Authorization Bypass due to Use of Default Secret KeyEPSS 0.4%CVE-2026-4815HIGHSQL Injection vulnerability in Support BoardEPSS 0.2%CVE-2025-54027HIGHWordPress Support Board <= 3.8.0 - Cross Site Scripting (XSS) VulnerabilityEPSS 0.2%CVE-2026-4816MEDIUMReflected Cross Site Scripting (XSS) vulnerability in Support BoardEPSS 0.2%