Vulnerability Details : CVE-2021-29438
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.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2021-29438
- cpe:2.3:a:nextcloud\/dialogs_project:nextcloud\/dialogs:*:*:*:*:*:node.js:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-29438
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 21 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-29438
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST | |
|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
NIST | |
|
4.6
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N |
2.1
|
2.5
|
GitHub, Inc. |
CWE ids for CVE-2021-29438
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: security-advisories@github.com (Primary)
-
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.Assigned by: security-advisories@github.com (Primary)
References for CVE-2021-29438
-
https://github.com/nextcloud/nextcloud-dialogs/security/advisories/GHSA-g3fq-3v3g-mh32
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in @nextcloud/dialogs · Advisory · nextcloud/nextcloud-dialogs · GitHubThird Party Advisory
-
https://www.npmjs.com/package/@nextcloud/dialogs
@nextcloud/dialogs - npmProduct;Third Party Advisory
Jump to