Cross Site Scripting Vulnerability in Linux Foundation Magma NMS
CVE-2026-129358

4.8MEDIUM

Key Information:

Vendor

Linux
Status
Magma
Vendor
CVE Published:
15 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-129358?

A cross site scripting vulnerability has been identified in the Linux Foundation's Magma NMS component, specifically within the handleReact function of the nms/server/main/routes.ts file. This vulnerability enables attackers to manipulate the web application to execute malicious scripts remotely. The exploit for this vulnerability is publicly available, increasing the risk for affected users. The vendor was informed of the issue prior to public disclosure but did not respond.

Affected Version(s)

Magma 1.0

Magma 1.1

Magma 1.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-129358 - Proof of Concept

References

https://vuldb.com/vuln/437421
vdb-entrytechnical-description
https://vuldb.com/vuln/437421/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-129358
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Aymen Benlamari
aymencdm (VulDB User)
aymencdm (VulDB User)
VulDB CNA Team
.