CVE-2021-39222 (GCVE-0-2021-39222)

Vulnerability from cvelistv5 – Published: 2021-11-15 18:30 – Updated: 2024-08-04 01:58
VLAI
Title
XSS in Talk
Summary
Nextcloud is an open-source, self-hosted productivity platform. The Nextcloud Talk application was vulnerable to a stored Cross-Site Scripting (XSS) vulnerability. For exploitation, a user would need to right-click on a malicious file and open the file in a new tab. Due the strict Content-Security-Policy shipped with Nextcloud, this issue is not exploitable on modern browsers supporting Content-Security-Policy. It is recommended that the Nextcloud Talk application is upgraded to patched versions 10.0.7, 10.1.4, 11.1.2, 11.2.0 or 12.0.0. As a workaround, use a browser that has support for Content-Security-Policy.
Severity
6.4 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7836 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
nextcloud security-advisories Affected: < 10.0.7
Affected: >= 10.1.0, < 10.1.4
Affected: >= 11.1.0, < 11.1.2
Affected: < 11.2.0
Affected: >= 12.0.0.alpha-1, < 12.0.0
guessed Create a notification for this product.
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