matrix-react-sdk is a react-based SDK for inserting a Matrix chat/voip client into a web page. The Export Chat feature includes certain attacker-controlled elements in the generated document without sufficient escaping, leading to stored Cross site scripting (XSS). Since the Export Chat feature generates a separate document, an attacker can only inject code run from the `null` origin, restricting the impact. However, the attacker can still potentially use the XSS to leak message contents. A malicious homeserver is a potential attacker since the affected inputs are controllable server-side. This issue has been addressed in commit `22fcd34c60` which is included in release version 3.76.0. Users are advised to upgrade. The only known workaround for this issue is to disable or to not use the Export Chat feature.
History

Fri, 18 Oct 2024 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-07-18T16:59:21.659Z

Updated: 2024-10-18T17:24:35.910Z

Reserved: 2023-06-29T19:35:26.436Z

Link: CVE-2023-37259

cve-icon Vulnrichment

Updated: 2024-08-02T17:09:33.537Z

cve-icon NVD

Status : Modified

Published: 2023-07-18T17:15:11.490

Modified: 2024-11-21T08:11:19.710

Link: CVE-2023-37259

cve-icon Redhat

No data.