CVE-2021-39221

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Summary

CVECVE-2021-39221
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-10-25 19:15:00 UTC
Updated2021-10-27 15:09:00 UTC
DescriptionNextcloud is an open-source, self-hosted productivity platform. The Nextcloud Contacts application prior to version 4.0.3 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 Contacts application is upgraded to 4.0.3. As a workaround, one may use a browser that has support for Content-Security-Policy.

Risk And Classification

Problem Types: CWE-79 | CWE-434

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Nextcloud Contacts All All All All

References

ReferenceSourceLinkTags
Run SVGs through some sanitization by ChristophWurst · Pull Request #2407 · nextcloud/contacts · GitHub MISC github.com
XSS in Contacts · Advisory · nextcloud/security-advisories · GitHub CONFIRM github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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