CVE-2021-29438

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in @nextcloud/dialogs

State: Published
Severity: 4.6 Medium
Published: Apr 13, 2021
Updated: Aug 3, 2024
Reserved: Mar 30, 2021

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.

Scores

CVSS	Score	Vector	Source
3.1	4.6 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N	GitHub_M

Weaknesses

CWE-79 {"CWE-79":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}
CWE-80 {"CWE-80":"Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)"}

Affected Products

Product	Versions
nextcloud-dialogsnextcloud	< 3.1.2Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.