CVE-2024-26135

Public Exploit
MeshCentral cross-site websocket hijacking (CSWSH) vulnerability

Description

MeshCentral is a full computer management web site. Versions prior to 1.1.21 a cross-site websocket hijacking (CSWSH) vulnerability within the control.ashx endpoint. This component is the primary mechanism used within MeshCentral to perform administrative actions on the server. The vulnerability is exploitable when an attacker is able to convince a victim end-user to click on a malicious link to a page hosting an attacker-controlled site. The attacker can then originate a cross-site websocket connection using client-side JavaScript code to connect to `control.ashx` as the victim user within MeshCentral. Version 1.1.21 contains a patch for this issue.

Category

8.3
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.56%
Vendor Advisory github.com
Affected: Ylianst MeshCentral
Published at:
Updated at:

References

Link Tags
https://github.com/Ylianst/MeshCentral/security/advisories/GHSA-cp68-qrhr-g9h8 vendor advisory mitigation exploit
https://github.com/Ylianst/MeshCentral/commit/f2e43cc6da9f5447dbff0948e6c6024c8a315af3 patch

Frequently Asked Questions

What is the severity of CVE-2024-26135?
CVE-2024-26135 has been scored as a high severity vulnerability.
How to fix CVE-2024-26135?
To fix CVE-2024-26135, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-26135 being actively exploited in the wild?
It is possible that CVE-2024-26135 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-26135?
CVE-2024-26135 affects Ylianst MeshCentral.
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