CVE-2026-34427

Vvveb < 1.0.8.1 Privilege Escalation via admin/user/save

HIGH
8.8
CVSS Score
Published: April 20, 2026 at 01:55 PM UTC
Updated: October 26, 2026 at 09:10 PM UTC
2 products affected across 2 vendorsVvvebVvveb

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Severity
HIGH8.8
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.0.8.1
Affected range stops below 1.0.8.1, so it looks safe — our inference, not a vendor statement
v < 1.0.8.1
Vendor states this is fixed in 0eca14af50f038915b8bf7ceec2becf6b6720b0a (unaffected)
Affected range stops below 1.0.8.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-915

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