CVE-2021-32707
Nextcloud Mail Image XSS
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.
INFO
Published Date :
July 12, 2021, 7:15 p.m.
Last Modified :
Oct. 25, 2022, 3:41 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2021-32707
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-32707.
| URL | Resource |
|---|---|
| https://github.com/nextcloud/mail/pull/5189 | Patch Third Party Advisory |
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xxp4-44xc-8crh | Third Party Advisory |
| https://hackerone.com/reports/1215251 | Exploit Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-32707 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-32707 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Oct. 25, 2022
Action Type Old Value New Value Changed Reference Type https://hackerone.com/reports/1215251 Permissions Required https://hackerone.com/reports/1215251 Exploit, Third Party Advisory Removed CWE NIST CWE-200 Added CWE NIST NVD-CWE-Other -
Initial Analysis by [email protected]
Jul. 15, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Changed Reference Type https://github.com/nextcloud/mail/pull/5189 No Types Assigned https://github.com/nextcloud/mail/pull/5189 Patch, Third Party Advisory Changed Reference Type https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xxp4-44xc-8crh No Types Assigned https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xxp4-44xc-8crh Third Party Advisory Changed Reference Type https://hackerone.com/reports/1215251 No Types Assigned https://hackerone.com/reports/1215251 Permissions Required Added CWE NIST CWE-200 Added CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud_mail:*:*:*:*:*:*:*:* versions up to (excluding) 1.9.6
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-32707 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-32707
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.07 }} 0.02%
score
0.28993
percentile