Administrator escalation via unchecked login settings save
Published Aug 28, 2026 · Updated Aug 28, 2026
Privilege escalation in WPEverest User Registration & Membership before 5.2.6 allows remote authenticated users to become administrators. The login-settings save path omits a capability check and accepts attacker-selected site-option names and values. Access requires a plugin-management capability rather than full administrator rights, and the resulting arbitrary option writes enable an account to gain the Administrator role.
Summary
What happened
Privilege escalation in WPEverest User Registration & Membership before 5.2.6 allows remote authenticated users to become administrators. The login-settings save path omits a capability check and accepts attacker-selected site-option names and values. Access requires a plugin-management capability rather than full administrator rights, and the resulting arbitrary option writes enable an account to gain the Administrator role.
The record
- CVE
- CVE-2026-79996
- Published
- Aug 28, 2026
- Updated
- Aug 28, 2026
- Vendor
- WPEverest
- Product
- User Registration & Membership
- Classifications
- T1098
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 28, 2026CVE publishedPublication date reported by the CVE source.
- Aug 28, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <5.2.6
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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