CVE-2021-39220

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Summary

CVECVE-2021-39220
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-10-25 19:15:00 UTC
Updated2022-08-05 11:05:00 UTC
DescriptionNextcloud is an open-source, self-hosted productivity platform The Nextcloud Mail application prior to versions 1.10.4 and 1.11.0 does by default not render images in emails to not leak the read state or user IP. The privacy filter failed to filter images with a relative protocol. It is recommended that the Nextcloud Mail application is upgraded to 1.10.4 or 1.11.0. There are no known workarounds aside from upgrading.

Risk And Classification

Problem Types: CWE-20

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Nextcloud Mail All All All All

References

ReferenceSourceLinkTags
HackerOne MISC hackerone.com
Set schema for url when empty. by kesselb · Pull Request #5470 · nextcloud/mail · GitHub MISC github.com
Bypass of image blocking in Nextcloud Mail · 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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