CVE-2021-32707

Name
CVE-2021-32707
Description
Nextcloud Mail is a mail app for Nextcloud. In versions prior to 1.9.6, the Nextcloud Mail application does not, by default, render images in emails to not leak the read state. The privacy filter failed to filter images with a `background-image` CSS attribute. Note that the images were still passed through the Nextcloud image proxy, and thus there was no IP leakage. The issue was patched in version 1.9.6 and 1.10.0. No workarounds are known to exist.
NVD Severity
medium
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://hackerone.com/reports/1215251
MISC https://github.com/nextcloud/mail/pull/5189
CONFIRM https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xxp4-44xc-8crh

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:nextcloud:nextcloud_mail:*:*:*:*:*:*:*:* nextcloud_mail >= None < 1.9.6

Vulnerable and fixed packages

Source package Branch Version Maintainer Status