CVE-2023-37259

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Summary

CVECVE-2023-37259
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-07-18 17:15:00 UTC
Updated2023-07-27 19:50:00 UTC
Descriptionmatrix-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.

Risk And Classification

Problem Types: CWE-79

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Matrix-react-sdk Project Matrix-react-sdk All All All All
Application Matrix-react-sdk Project Matrix-react-sdk 3.76.0 rc1 All All
Application Matrix-react-sdk Project Matrix-react-sdk 3.76.0 rc2 All All

References

ReferenceSourceLinkTags
Sanitise strings going into the html export CVE-2023-37259 · matrix-org/matrix-react-sdk@22fcd34 · GitHub MISC github.com
Potential for XSS in Export Chat feature · Advisory · matrix-org/matrix-react-sdk · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 691214 Free Berkeley Software Distribution (FreeBSD) Security Update for element (c70c3dc3-258c-11ee-b37b-901b0e9408dc)
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