CVE-2021-32707: 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…

PriorityP421medium4.3CVSS 3.1

AVNACLPRLUINSUCNILAN

EPSS

1.15%

62.8th percentile

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
nextcloud	mail	< 1.9.6	1.9.6
nextcloud	security-advisories	< 1.9.6	1.9.6

CVSS provenance

nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:N/I:P/A:N

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