CVE-2026-40326

Masa CMS CSRF in site bundle creation allows unauthorized site data export

HIGH
7.1
CVSS Score
Published: May 6, 2026 at 07:57 PM UTC
Updated: June 17, 2026 at 10:45 AM UTC
1 product affected across 1 vendorMasaCMS

Using MasaCMS by MasaCMS?

Get instant alerts when new vulnerabilities affect MasaCMS - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 7.2.10v < 7.3.15v < 7.4.10v < 7.5.3
Affected range stops below 7.2.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.3.15, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.4.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.5.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-352

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card