CVE-2021-29438
MEDIUMNextcloud Dialogs < 3.1.2 - Cross-Site Scripting via Toast Input
Title source: llmDescription
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.
References (2)
Core 2
Core References
Third Party Advisory x_refsource_confirm
https://github.com/nextcloud/nextcloud-dialogs/security/advisories/GHSA-g3fq-3v3g-mh32
Various Sources x_refsource_misc
https://www.npmjs.com/package/%40nextcloud/dialogs
Scores
CVSS v3
4.6
EPSS
0.0022
EPSS Percentile
45.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Details
CWE
CWE-80
CWE-79
Status
published
Products (2)
nextcloud/dialogs
0 - 3.1.2npm
nextcloud\/dialogs_project/nextcloud\/dialogs
< 3.1.2
Published
Apr 13, 2021
Tracked Since
Feb 18, 2026