CVE-2026-34427 PUBLISHED

Vvveb < 1.0.8.1 Privilege Escalation via admin/user/save

Assigner: VulnCheck
Reserved: 27.03.2026 Published: 20.04.2026 Updated: 20.04.2026

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:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	givanz
Product	Vvveb
Versions	Default: unaffected affected from 0 to 1.0.8.1 (excl.) Version 0eca14af50f038915b8bf7ceec2becf6b6720b0a is unaffected

Credits

Hamed Kohi of Delta Obscura finder
VulnCheck coordinator

References

Problem Types

CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes CWE