Super Administrator escalation via role_id injection
Published Apr 20, 2026 · Updated Apr 20, 2026
Privilege escalation in Vvveb before 1.0.8.1 allows remote authenticated users to gain Super Administrator access via a profile request. The save() method in admin/controller/user/user.php accepts a posted role_id for the current profile and persists it without restricting role changes by non-administrators. Any authenticated account can therefore assign role_id 1 to itself, gaining plugin-upload access that enables arbitrary PHP code execution.
Summary
What happened
Privilege escalation in Vvveb before 1.0.8.1 allows remote authenticated users to gain Super Administrator access via a profile request. The save() method in admin/controller/user/user.php accepts a posted role_id for the current profile and persists it without restricting role changes by non-administrators. Any authenticated account can therefore assign role_id 1 to itself, gaining plugin-upload access that enables arbitrary PHP code execution.
The record
- CVE
- CVE-2026-34427
- Published
- Apr 20, 2026
- Updated
- Apr 20, 2026
- Vendor
- givanz
- Product
- Vvveb
- Classifications
- CWE-915, T1098
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 20, 2026CVE publishedPublication date reported by the CVE source.
- Apr 20, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0 <1.0.8.1
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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