What is CVE-2023-37259?

CVE-2023-37259 is a medium-severity vulnerability in Matrix-org Matrix-react-sdk, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-07-18.

How severe is CVE-2023-37259?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Matrix-org Matrix-react-sdk

CVE-2023-37259

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 C…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (35.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N.

Affected products

Matrix-org Matrix-react-sdk — versions >= 3.32.0, < 3.76.0
Matrix-react-sdk_project Matrix-react-sdk — versions 3.76.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2023-37259?: CVE-2023-37259 is a medium-severity vulnerability in Matrix-org Matrix-react-sdk, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-07-18.
How severe is CVE-2023-37259?: Medium severity. CVSS v3 base score is 6.1 out of 10.