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Security Database

CVE

CWE

Training

CVE-2021-32707

Published: Jul 12, 2021

Modified: Aug 3, 2024

PUBLISHED

CVSS v3.1

4.3

MEDIUM

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.

Vendor	Product	Versions
nextcloud	security-advisories	affected `< 1.9.6`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

References

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

x_refsource_CONFIRM

https://github.com/nextcloud/mail/pull/5189

x_refsource_MISC

https://hackerone.com/reports/1215251

x_refsource_MISC

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