High severity · published Apr 20, 2026
CVE-2026-34427
Vvveb < 1.0.8.1 Privilege Escalation via admin/user/save
8.8
CVSS
0.6%
EPSS
No
On KEV
Description
Vvveb prior to 1.0.8.1 contains a privilege escalation vulnerability in the admin user profile save endpoint that allows authenticated users to modify privileged fields on their own profile. Attackers can inject role_id=1 into profile save requests to escalate to Super Administrator privileges, enabling plugin upload functionality for remote code execution.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VV
Vvveb · givanz
before 1.0.8.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-34427
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-34427
github.com
https://github.com/givanz/Vvveb/commit/0eca14af50f038915b8bf7ceec2becf6b6720b0a
github.com
https://github.com/givanz/Vvveb/releases/tag/1.0.8.1
www.vulncheck.com
https://www.vulncheck.com/advisories/vvveb-privilege-escalation-via-admin-user-save
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