CVE-2021-21379
XWiki Platform Cross-Site Scripting (XSS) Vulnerability
Description
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions of XWiki Platform, the `{{wikimacrocontent}}` executes the content with the rights of the wiki macro author instead of the caller of that wiki macro. This makes possible to inject scripts through it and they will be executed with the rights of the wiki macro (very often a user which has Programming rights). Fortunately, no such macro exists by default in XWiki Standard but one could have been created or installed with an extension. This vulnerability has been patched in versions XWiki 12.6.3, 11.10.11 and 12.8-rc-1. There is no easy workaround other than disabling the affected macros. Inserting content in a safe way or knowing what is the user who called the wiki macro is not easy.
INFO
Published Date :
March 12, 2021, 6:15 p.m.
Last Modified :
March 22, 2021, 4:26 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.8
Exploitability Score :
1.3
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-2021-21379.
| URL | Resource |
|---|---|
| https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-v662-xpcc-9xf6 | Third Party Advisory |
| https://jira.xwiki.org/browse/XWIKI-17759 | Vendor 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-2021-21379 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-21379 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]
Mar. 22, 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/xwiki/xwiki-platform/security/advisories/GHSA-v662-xpcc-9xf6 No Types Assigned https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-v662-xpcc-9xf6 Third Party Advisory Changed Reference Type https://jira.xwiki.org/browse/XWIKI-17759 No Types Assigned https://jira.xwiki.org/browse/XWIKI-17759 Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:* versions from (including) 11.4 up to (excluding) 11.10.11 *cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:* versions from (including) 12.0 up to (excluding) 12.6.3 *cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:* versions from (including) 12.7 up to (including) 12.7.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-21379 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-2021-21379
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.20649
percentile