The Fiber Admin WordPress plugin before 4.0.1 does not validate or escape a request header before writing it into a
Source GCVE Database
Not known to be exploited : upgrade to 4.0.1 soon.
Data as of 7 Nov 2026, 07:36 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in 4.0.1
Exploitation evidence
Disclosed: evidence found.
CVE published 7 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.
What to do
Upgrade Fiber Admin (WordPress plugin) to 4.0.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Fiber Admin | Affected
| Fixed in
|
AI-suggested
Upgrade the Fiber Admin WordPress plugin to version 4.0.1 or later, where this vulnerability is fixed. Since the plugin version 4.0.1 addresses this issue, applying the official update is the recommended remediation. No alternative mitigations are provided in the available data.
Description
The Fiber Admin WordPress plugin versions before 4.0.1 contains a vulnerability where it does not validate or escape a request header before writing it into a PHP file during an unprotected admin hook. This flaw allows unauthenticated attackers to execute arbitrary code if the plugin's custom database error page is enabled and the attacker can win a race condition against an administrator saving settings.