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Medium severity · published Oct 13, 2026
CVE-2026-109699
WordPress User Registration plugin <= 5.2.8 - Broken Access Control vulnerability
5.4
CVSS
0.2%
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 5.2.8.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UR
User Registration · ThemeGrill
through 5.2.8 · source: vendor
Affected product
UR
User Registration
ThemeGrill
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109699
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-109699
vdb-entry
https://patchstack.com/database/wordpress/plugin/user-registration/vulnerability/wordpress-user-registration-plugin-5-2-8-broken-access-control-vulnerability-2?_s_id=cve
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