CVE-2021-32782
Nextcloud Circles Stored XSS Vulnerability
Description
Nextcloud Circles is an open source social network built for the nextcloud ecosystem. In affected versions the Nextcloud Circles application is vulnerable to a stored Cross-Site Scripting (XSS) vulnerability. Due the strict Content-Security-Policy shipped with Nextcloud, this issue is not exploitable on modern browsers supporting Content-Security-Policy. It is recommended that the Nextcloud Circles application is upgraded to 0.21.3, 0.20.10 or 0.19.14 to resolve this issue. As a workaround users may use a browser that has support for Content-Security-Policy. A notable exemption is Internet Explorer which does not support CSP properly.
INFO
Published Date :
Sept. 7, 2021, 8:15 p.m.
Last Modified :
Sept. 10, 2021, 7:59 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.0
Exploitability Score :
1.3
Affected Products
The following products are affected by CVE-2021-32782
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-2021-32782.
| URL | Resource |
|---|---|
| https://github.com/nextcloud/circles/commit/dbb97a83ccb342c839a54f088aa19b8ba6844b0e | Patch Third Party Advisory |
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hgpq-28gj-jrj9 | Patch Third Party Advisory |
| https://hackerone.com/reports/1217606 | Permissions Required 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-2021-32782 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-32782 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 -
Initial Analysis by [email protected]
Sep. 10, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:S/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Changed Reference Type https://github.com/nextcloud/circles/commit/dbb97a83ccb342c839a54f088aa19b8ba6844b0e No Types Assigned https://github.com/nextcloud/circles/commit/dbb97a83ccb342c839a54f088aa19b8ba6844b0e Patch, Third Party Advisory Changed Reference Type https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hgpq-28gj-jrj9 No Types Assigned https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hgpq-28gj-jrj9 Patch, Third Party Advisory Changed Reference Type https://hackerone.com/reports/1217606 No Types Assigned https://hackerone.com/reports/1217606 Permissions Required, Third Party Advisory Added CWE NIST CWE-79 Added CPE Configuration OR *cpe:2.3:a:nextcloud:circles:*:*:*:*:*:*:*:* versions up to (excluding) 0.19.14 *cpe:2.3:a:nextcloud:circles:*:*:*:*:*:*:*:* versions from (including) 0.20.0 up to (excluding) 0.20.10 *cpe:2.3:a:nextcloud:circles:*:*:*:*:*:*:*:* versions from (including) 0.21.0 up to (excluding) 0.21.3
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-32782 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-2021-32782
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.23549
percentile