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CVE-2026-32104— StudioCMS: IDOR in User Notification Preferences Allows Any Authenticated User to Modify Any User's Settings

Quick assessment

Affected
withstudiocms studiocms
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

StudioCMS是StudioCMS开源的一个内容管理系统。 StudioCMS 0.4.3之前版本存在安全漏洞，该漏洞源于updateUserNotifications端点存在访问控制不当问题，可能导致任何经过身份验证的用户修改其他用户的通知偏好。

CVSS 5.4 · Medium EPSS 0.30% · P20
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I. Basic Information for CVE-2026-32104

Vulnerability Information
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Vulnerability Title
StudioCMS: IDOR in User Notification Preferences Allows Any Authenticated User to Modify Any User's Settings
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
StudioCMS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
StudioCMS是StudioCMS开源的一个内容管理系统。 StudioCMS 0.4.3之前版本存在安全漏洞，该漏洞源于updateUserNotifications端点存在访问控制不当问题，可能导致任何经过身份验证的用户修改其他用户的通知偏好。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
withstudiocms studiocms < 0.4.3 -

II. Public POCs for CVE-2026-32104

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III. Intelligence Information for CVE-2026-32104

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Vendor Advisories for CVE-2026-32104 (1)

Same Patch Batch · withstudiocms · 2026-03-11 · 3 CVEs total

CVE-2026-32103 6.8 MEDIUM StudioCMS: IDOR — Admin-to-Owner Account Takeover via Password Reset Link Generation
CVE-2026-32106 4.7 MEDIUM StudioCMS: REST API Missing Rank Check Allows Admin to Create Peer Admin Accounts

IV. Related Vulnerabilities

Same product: studiocms
Same vendor: withstudiocms
Same weakness: CWE-639

V. Comments for CVE-2026-32104

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