Vulnerability · Published May 6, 2026 · Assigned by GitHub_M

CVE-2026-40174Masa CMS CSRF in user address management allows unauthorized address changes

High 7.1

In plain English

A high-severity cross-site request forgery in MasaCMS from MasaCMS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).

Severity (CVSS 4.0)7.1High

Exploit odds (30 days)0.2%top 94.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Masa CMS is a content management system forked from Mura CMS. In versions 7.5.2 and earlier, the cUsers.updateAddress function does not properly validate anti-CSRF tokens for user address management operations. An attacker can induce a logged-in administrator to submit a forged request that adds, modifies, or deletes user address records, including email addresses and phone numbers. This can be used to alter contact information, redirect organizational communications, and corrupt address data in the user directory. This issue has been fixed in versions 7.2.10, 7.3.15, 7.4.10, and 7.5.3. As a workaround, restrict access to the administrative backend, use browser isolation for administrative sessions, or deploy filtering rules to block forged requests to the affected endpoint

Affected products (as reported)

Vendor	Product	Versions
MasaCMS	MasaCMS	< 7.2.10>= 7.3.0, < 7.3.15>= 7.4.0, < 7.4.10>= 7.5.0, < 7.5.3

Weakness: CWE-352 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

References

https://github.com/MasaCMS/MasaCMS/security/advisories/GHSA-572m-p246-4356 x_refsource_CONFIRM