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CVE-2026-40326— Masa CMS CSRF in site bundle creation allows unauthorized site data export

Quick assessment

Affected
MasaCMS MasaCMS
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.

Masa CMS是Masa CMS组织的一个数字体验平台。 Masa CMS 7.5.2及之前版本存在跨站请求伪造漏洞，该漏洞源于csettings.cfc中的createBundle方法未正确验证反CSRF令牌，可能导致攻击者诱导管理员创建站点捆绑包并保存到可预测的公开目录，使未经身份验证的攻击者获取站点内容、用户账户数据、密码哈希等敏感信息。

AI Predicted 9.8 Difficulty: Moderate EPSS 0.22% · P12

Affected Version Matrix 4

VendorProduct Version RangeStatus
MasaCMS MasaCMS < 7.2.10 affected
>= 7.3.0, < 7.3.15 affected
>= 7.4.0, < 7.4.10 affected
>= 7.5.0, < 7.5.3 affected
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I. Basic Information for CVE-2026-40326

Vulnerability Information
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Vulnerability Title
Masa CMS CSRF in site bundle creation allows unauthorized site data export
Source: CVE Program / CVE List V5
Vulnerability Description
Masa CMS is a content management system forked from Mura CMS. In versions 7.5.2 and earlier, the createBundle method in `csettings.cfc` does not properly validate anti-CSRF tokens for site bundle creation requests. An attacker can craft a malicious webpage or link that, when visited by a logged-in administrator, triggers the silent creation of a comprehensive site bundle. This bundle is saved to a predictable, publicly accessible web directory. An unauthenticated attacker can then retrieve the bundle and obtain site content, user account data, password hashes, form submissions, email lists, plugins, and configuration data. This issue has been fixed in versions 7.2.10, 7.3.15, 7.4.10, and 7.5.3. As a workaround, remove unexpected bundle files from public directories, restrict access to the affected endpoint, and limit exposure of administrative sessions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Masa CMS 跨站请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Masa CMS是Masa CMS组织的一个数字体验平台。 Masa CMS 7.5.2及之前版本存在跨站请求伪造漏洞，该漏洞源于csettings.cfc中的createBundle方法未正确验证反CSRF令牌，可能导致攻击者诱导管理员创建站点捆绑包并保存到可预测的公开目录，使未经身份验证的攻击者获取站点内容、用户账户数据、密码哈希等敏感信息。
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
MasaCMS MasaCMS < 7.2.10 -

II. Public POCs for CVE-2026-40326

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III. Intelligence Information for CVE-2026-40326

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Vendor Advisories for CVE-2026-40326 (1)

Same Patch Batch · MasaCMS · 2026-05-06 · 5 CVEs total

CVE-2026-40309 Masa CMS CSRF in trash management allows unauthorized permanent deletion of deleted conten
CVE-2026-40325 Masa CMS CSRF in content restoration allows unauthorized restoration of deleted content
CVE-2026-40332 Masa CMS open redirect via improper handling of scheme-relative URLs
CVE-2026-40174 Masa CMS CSRF in user address management allows unauthorized address changes

IV. Related Vulnerabilities

Same product: MasaCMS
Same vendor: MasaCMS
Same weakness: CWE-352

V. Comments for CVE-2026-40326

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