Description (CNA)
Element Web is a Matrix web client built using the Matrix React SDK. Prior to 1.12.22, EmbeddedPage in apps/web/src/components/structures/EmbeddedPage.tsx renders homeserver-supplied homepage content through dangerouslySetInnerHTML without passing it through sanitizedHtmlNode. A malicious homeserver can provide crafted HTML that Element Web renders on the homepage; the content security policy prevents JavaScript but not phishing HTML. This issue is fixed in version 1.12.22.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| element-hq / element-web | affected < 1.12.22 |
CWE
CWE-79
References
- https://github.com/element-hq/element-web/security/advisories/GHSA-wrcp-5v3v-3j6v
- https://github.com/element-hq/element-web/commit/7949980a7e3c7e397d7afe899ef1b0563c417b0e
- https://github.com/element-hq/element-web/releases/tag/v1.12.22
- https://www.machinespirits.com/advisory/563a17
ADP enrichment
No English description supplied.
No references supplied.