{"cve":"CVE-2023-30609","nvd":{"published":"2023-04-25T21:15:10.843","modified":"2026-06-17T05:55:07.830","status":"Modified","description":"matrix-react-sdk is a react-based SDK for inserting a Matrix chat/VoIP client into a web page. Prior to version 3.71.0, plain text messages containing HTML tags are rendered as HTML in the search results. To exploit this, an attacker needs to trick a user into searching for a specific message containing an HTML injection payload. No cross-site scripting attack is possible due to the hardcoded content security policy. Version 3.71.0 of the SDK patches over the issue. As a workaround, restarting the client will clear the HTML injection.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N","score":4.7},"cwes":["CWE-74"],"references":["https://github.com/matrix-org/matrix-react-sdk/commit/bf182bc94556849d7acdfa0e5fdea2aa129ea826","https://github.com/matrix-org/matrix-react-sdk/releases/tag/v3.71.0","https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-xv83-x443-7rmw","https://github.com/matrix-org/matrix-react-sdk/commit/bf182bc94556849d7acdfa0e5fdea2aa129ea826","https://github.com/matrix-org/matrix-react-sdk/releases/tag/v3.71.0"],"products":["matrix-react-sdk_project:matrix-react-sdk"],"source":"nvd","synced_at":"2026-10-19T21:38:05.473481323+00:00"},"epss":{"cve":"CVE-2023-30609","score":0.00617,"percentile":0.49576,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-xv83-x443-7rmw","url":"https://osv.dev/vulnerability/GHSA-xv83-x443-7rmw","summary":"HTML injection in search results via plaintext message highlighting","modified":"2023-11-08T04:12:25.905467Z","packages":[{"ecosystem":"npm","name":"matrix-react-sdk","purl":"pkg:npm/matrix-react-sdk","ranges":["<3.71.0"],"fixed":["3.71.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}