CVE-2024-26135 json
MeshCentral cross-site websocket hijacking (CSWSH) vulnerability
published 2024-02-20 2 y ago modified 2026-09-10 1 mo ago also EUVD-2024-0618 , GHSA-cp68-qrhr-g9h8
- cvss
- 8.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 40%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/Ylianst/MeshCentral/security/advisories/GHSA-cp68-qrhr-g9h8 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H |
| GitHub | 3.0 | 8.3 | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | meshcentral | <1.1.21 |
1.1.21 |
Affected products
- Ylianst MeshCentral
Classification
- Weakness
-
- CWE-346 Origin Validation Error
References
-
github.com
/Ylianst/MeshCentral/commit/f2e43cc6da9f5447dbff0948e6c6024c8a315af3
web, patch
-
github.com
/Ylianst/MeshCentral/security/advisories/GHSA-cp68-qrhr-g9h8
web, exploit, mitigation, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-26135
advisory
-
github.com
/Ylianst/MeshCentral
package
Sources
- CVE List CVE-2024-26135
- GitHub Advisory GHSA-cp68-qrhr-g9h8
- NVD CVE-2024-26135
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.