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TI-2026-24642 Aliases CVE-2026-32104GHSA-9v82-xrm4-mp52

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

Priority MEDIUM 58CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-639.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00285 21st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed studiocms (withstudiocms): 0.4.3studiocms (npm): 0.4.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
withstudiocmsstudiocmsbefore 0.4.30.4.3Patch availableCNA
—studiocms (npm)before 0.4.30.4.3Patch availableGHSA-9v82-xrm4-mp52
  • studiocms Vendorwithstudiocms Affected before 0.4.3 Fixed in 0.4.3 Patch available CNA
  • studiocms (npm) Vendor— Affected before 0.4.3 Fixed in 0.4.3 Patch available GHSA-9v82-xrm4-mp52

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:studiocms:studiocms:*:*:*:*:*:*:*:*before 0.4.3Vulnerablewithstudiocms
  • cpe:2.3:a:studiocms:studiocms:*:*:*:*:*:*:*:* Versions before 0.4.3 Vulnerable ·withstudiocms

Remediation

  • Fix · CNA studiocms (withstudiocms) Fixed in 0.4.3
  • Fix · GHSA-9v82-xrm4-mp52 studiocms (npm) Fixed in 0.4.3 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-32104
  2. 2026-10-03 Alias added: GHSA-9v82-xrm4-mp52

References

Exploit 1

Advisory 1

Other 1

  • TI-2026-23769 StudioCMS Affected by Privilege Escalation via Insecure API Token Generation CVSS 3.1HIGH 8.8
  • TI-2026-24639 StudioCMS S3 Storage Manager Authorization Bypass via Missing `await` on Async Auth Check CVSS 3.1HIGH 7.6
  • TI-2026-24644 StudioCMS: REST API Missing Rank Check Allows Admin to Create Peer Admin Accounts CVSS 3.1HIGH 7.2
  • TI-2026-24641 StudioCMS: IDOR — Admin-to-Owner Account Takeover via Password Reset Link Generation CVSS 3.1HIGH 7.2
  • TI-2026-19452 StudioCMS has an Authorization Bypass Through User-Controlled Key CVSS 3.1MEDIUM 6.5
  • TI-2026-25147 StudioCMS REST getUsers Exposes Owner Account Records to Admin Tokens CVSS 3.1LOW 2.7
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences