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Medium severity · published Oct 29, 2026
CVE-2026-25450
WordPress User Registration plugin <= 5.3.0 - Broken Access Control vulnerability
New
5.3
CVSS
–
EPSS
No
On KEV
Description
Missing Authorization vulnerability in ThemeGrill User Registration user-registration allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects User Registration: from n/a through 5.3.0.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UR
User Registration · ThemeGrill
through 5.3.0 · source: vendor
Affected product
UR
User Registration
ThemeGrill
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-25450
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-25450
patchstack.com
https://patchstack.com/database/wordpress/plugin/user-registration/vulnerability/wordpress-user-registration-plugin-5-3-0-broken-access-control-vulnerability?_s_id=cve
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