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CVE-2021-32707

MEDIUM

4.3

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.

CVE Details

CVSS v3.1 Score4.3

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published7/12/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

nextcloud:mail

Weaknesses (CWE)

CWE-20CWE-200

References

https://github.com/nextcloud/mail/pull/5189(security-advisories@github.com)

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xxp4-44xc-8crh(security-advisories@github.com)

https://hackerone.com/reports/1215251(security-advisories@github.com)

https://github.com/nextcloud/mail/pull/5189(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xxp4-44xc-8crh(af854a3a-2127-422b-91ae-364da2661108)

https://hackerone.com/reports/1215251(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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