Medium, CVSS 4.6npmAmendedPublished
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in @nextcloud/dialogs
CVE-2021-29438 · GHSA-g3fq-3v3g-mh32
- Affected
- npm @nextcloud/dialogs < 3.1.2
- Fixed in
- 3.1.2· Vendor fix available
- Issue
- Impact The Nextcloud dialogs library before 3.1.2 did insufficiently escape text input passed to a toast. If your application displays toasts with user-supplied input, this could lead to a XSS vulnerability. Note: Nextcloud Server employs a strict Content Security Policy that mitigates the risk of these XSS vulnerabilities. Patches 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. Workarounds Make sure no user-supplied input flows into toasts.
Recommended action: Upgrade to 3.1.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.