High severity · published May 14, 2026
CVE-2026-41937
Vvveb < 1.0.8.3 Unrestricted File Upload RCE via Plugin Upload
7.2
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VV
Vvveb · givanz
before 1.0.8.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41937
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-41937
github.com
https://github.com/givanz/Vvveb/commit/04f0294350ec429e307cd31c2e777a4797c868d6
github.com
https://github.com/givanz/Vvveb/releases/tag/1.0.8.3
www.vulncheck.com
https://www.vulncheck.com/advisories/vvveb-unrestricted-file-upload-rce-via-plugin-upload
More from Vvveb
9.8
CVE-2026-41930
Vvveb < 1.0.8.2 Hard-coded Credentials Information Disclosure via phpMyAdmin
9.8
CVE-2026-39918
Vvveb < 1.0.8.1 Code Injection via Installation Endpoint
9.8
CVE-2025-9397
givanz Vvveb media.php unrestricted upload
8.8
CVE-2026-54612
Vvveb: Authenticated editor path traversal to PHP file write/RCE via data-v-save-global
8.8
CVE-2026-49228
Vvveb product authorization bypass allows Vendors to read, duplicate, or delete other Vendors' products