Vvveb < 1.0.8.3 Unrestricted File Upload RCE via Plugin Upload
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-434.
Summary
Vvveb before 1.0.8.3 contains an unrestricted file upload vulnerability in the plugin upload endpoint that allows super_admin users to execute arbitrary PHP code by uploading a malicious plugin ZIP file. Attackers can craft a ZIP containing a plugin.php with a valid Slug header and a public/index.php file with arbitrary PHP code, which executes as the web server user once accessed via subsequent unauthenticated HTTP requests to the plugin's public path.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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
- Fix · CNA Vvveb (givanz) Fixed in 1.0.8.3
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
givanz Vvveb 1.0.8.3
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2026-30335 Vvveb < 1.0.8.3 Directory Listing Information DisclosurePriority LOW 36
- TI-2026-30337 Vvveb < 1.0.8.3 Uncontrolled Recursion Denial of ServicePriority LOW 31
- TI-2026-30334 Vvveb < 1.0.8.3 Stored XSS via Signup ControllerPriority LOW 23
Timeline
- 2026-10-02 Threatist record created from CVE-2026-41937
- 2026-10-03 Alias added: GHSA-gv85-3994-qprw
- 2026-10-25 Priority changed: MEDIUM → LOW
References
More givanz vulnerabilities
- TI-2026-83112 Authentication bypass in Vvveb password reset enables account takeover CVSS 3.1CRITICAL 9.8
- TI-2025-28570 An issue in vvveb CMS v.1.0.6 allows a remote attacker to execute arbitrary code via the Plugin mechanism. CVSS 3.1CRITICAL 9.8
- TI-2024-18282 givanz VvvebJs 1.7.2 is vulnerable to Insecure File Upload. CVSS 3.1CRITICAL 9.8
- TI-2024-16622 givanz VvvebJs 1.7.2 suffers from a File Upload vulnerability via save.php. CVSS 3.1CRITICAL 9.8
- TI-2024-16621 A critical vulnerability has been identified in givanz VvvebJs 1.7.2, which allows both… CVSS 3.1CRITICAL 9.1
- TI-2026-83115 Authenticated IDOR in Vvveb lets admins steal other admins' API tokens CVSS 3.1CRITICAL 9.0
Sources
- CVE-2026-41937 · CVE Program
- CVE-2026-41937 · NVD
- FIRST EPSS
- GHSA-gv85-3994-qprw · 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