CVE-2021-21340
Typo3 Cross-Site Scripting Vulnerability
Description
TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 10.4.14, 11.1.1 it has been discovered that database fields used as _descriptionColumn_ are vulnerable to cross-site scripting when their content gets previewed. A valid backend user account is needed to exploit this vulnerability. This is fixed in versions 10.4.14, 11.1.1 .
INFO
Published Date :
March 23, 2021, 2:15 a.m.
Last Modified :
March 26, 2021, 6:42 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.7
Exploitability Score :
2.3
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-2021-21340.
| URL | Resource |
|---|---|
| https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-fjh3-g8gq-9q92 | Third Party Advisory |
| https://packagist.org/packages/typo3/cms-backend | Release Notes Third Party Advisory |
| https://typo3.org/security/advisory/typo3-core-sa-2021-007 | 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-2021-21340 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-21340 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. 26, 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/TYPO3/TYPO3.CMS/security/advisories/GHSA-fjh3-g8gq-9q92 No Types Assigned https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-fjh3-g8gq-9q92 Third Party Advisory Changed Reference Type https://packagist.org/packages/typo3/cms-backend No Types Assigned https://packagist.org/packages/typo3/cms-backend Release Notes, Third Party Advisory Changed Reference Type https://typo3.org/security/advisory/typo3-core-sa-2021-007 No Types Assigned https://typo3.org/security/advisory/typo3-core-sa-2021-007 Vendor Advisory Added CWE NIST CWE-79 Added CPE Configuration OR *cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* versions from (including) 10.0.0 up to (excluding) 10.4.14 *cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* versions from (including) 11.0.0 up to (excluding) 11.1.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-21340 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-2021-21340
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
0.23968
percentile