High severity · published Sep 30, 2026
CVE-2026-75823
WP User Frontend 3.5.29 - 4.3.11 - Unauthenticated Privilege Escalation via Registration Role Encryption
7.4
CVSS
0.2%
EPSS
No
On KEV
Description
The User Frontend WordPress plugin before 4.3.12 does not prevent tampering with the role assigned by its registration form, allowing unauthenticated users to register with a higher privileged role, such as Editor.
This affects installations running a PHP build where the sodium extension is unavailable, and where a registration page has been configured. The administrator role cannot be obtained this way.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UF
User Frontend ·
3.5.29 before 4.3.12 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-75823
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-75823
exploit
https://wpscan.com/vulnerability/4a385690-3471-4604-aa2a-e120bb31ca53/
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