{"cve":"CVE-2021-29438","nvd":{"published":"2021-04-13T20:15:22.187","modified":"2026-06-17T03:47:38.530","status":"Modified","description":"The Nextcloud dialogs library (npm package @nextcloud/dialogs) before 3.1.2 insufficiently escaped text input passed to a toast. If your application displays toasts with user-supplied input, this could lead to a XSS vulnerability. The vulnerability has been patched in version 3.1.2 If you need to display HTML in the toast, explicitly pass the `options.isHTML` config flag.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4},"cwes":["CWE-79","CWE-80"],"references":["https://github.com/nextcloud/nextcloud-dialogs/security/advisories/GHSA-g3fq-3v3g-mh32","https://www.npmjs.com/package/%40nextcloud/dialogs","https://github.com/nextcloud/nextcloud-dialogs/security/advisories/GHSA-g3fq-3v3g-mh32","https://www.npmjs.com/package/%40nextcloud/dialogs"],"products":["nextcloud\\/dialogs_project:nextcloud\\/dialogs"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2021-29438","score":0.00703,"percentile":0.53298,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-g3fq-3v3g-mh32","url":"https://osv.dev/vulnerability/GHSA-g3fq-3v3g-mh32","summary":"Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in @nextcloud/dialogs","modified":"2026-07-08T06:28:13.166636808Z","packages":[{"ecosystem":"npm","name":"@nextcloud/dialogs","purl":"pkg:npm/%40nextcloud/dialogs","ranges":["<3.1.2"],"fixed":["3.1.2"]}]}],"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."]}