Vulnerability record/PUBLISHED/Published Nov 7, 2026 10:11:13 UTC

CVE-2026-120840

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.

Base score4.3/ 10

SeverityMediumCVSS 3.1

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes

Base severityMedium

Attack vectorNetworkAV

Attack complexityLowAC

Privileges requiredLowPR

User interactionNoneUI

ScopeUnchangedS

Confidentiality impactNoneC

Integrity impactLowI

Availability impactNoneA

CVSS vector stringCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering AuthorityPatchstack

Last updatedNov 7, 2026 18:36:38 UTC

PublishedNov 7, 2026 10:11:13 UTC

ReservedNov 3, 2026 00:24:21 UTC

Credits

fccsec.dev | Patchstack Bug Bounty Program