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CI4MS: Backup Management Full Account Takeover for All Roles & Privilege Escalation via Stored DOM Blind XSS

Moderate severity GitHub Reviewed Published Apr 18, 2026 in ci4-cms-erp/ci4ms • Updated Apr 30, 2026

Package

composer ci4-cms-erp/ci4ms (Composer)

Affected versions

< 0.31.5.0

Patched versions

0.31.5.0

Description

An attacker can achieve Full Account Takeover and Privilege Escalation via Stored DOM XSS in the backup module's filename field, which is manipulated through an SQL file that tampers with the filename field to contain a hidden XSS payload.

References

@bertugfahriozer bertugfahriozer published to ci4-cms-erp/ci4ms Apr 18, 2026
Published to the GitHub Advisory Database Apr 22, 2026
Reviewed Apr 22, 2026
Last updated Apr 30, 2026

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

EPSS score

Weaknesses

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Learn more on MITRE.

CVE ID

CVE-2026-41201

GHSA ID

GHSA-qxpq-82f3-xj47

Source code

Credits

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