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CVE-2026-32104

StudioCMS: IDOR in User Notification Preferences Allows Any Authenticated User to Modify Any User's Settings

Published: Mar 11, 2026Updated: Mar 17, 2026 Sources: CVE List NVD GHSACWE-639
NVD MITRE
5.4CVSSMEDIUM
EPSS Score
0.3%
Top 83.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

StudioCMS is a server-side-rendered, Astro native, headless content management system. Prior to 0.4.3, the updateUserNotifications endpoint accepts a user ID from the request payload and uses it to update that user's notification preferences. It checks that the caller is logged in but never verifies that the caller owns the target account (id !== userData.user.id). Any authenticated visitor can modify notification preferences for any user, including disabling admin notifications to suppress detection of malicious activity. This vulnerability is fixed in 0.4.3.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-639

Affected Products

studiocmswithstudiocms
On-prem
Web & CMS Plugins / cms-core
studiocmsstudiocms
On-prem
Web & CMS Plugins / cms-core
studiocmsnpmOSS Libraries
withstudiocmsWeb & CMS Plugins
studiocmscommercialWeb & CMS Pluginsaka studiocms
npmpackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://github.com/withstudiocms/studiocms/security/advisories/GHSA-9v82-xrm4-mp52
github.com
https://nvd.nist.gov/vuln/detail/CVE-2026-32104
nvd.nist.gov
https://github.com/withstudiocms/studiocms
github.com

Timeline

Published
Mar 11, 2026
Last Updated
Mar 17, 2026

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