CVE-2021-32768
TYPO3 Cross-Site Scripting Vulnerability in Rich-Text Content Rendering
Description
TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions failing to properly parse, sanitize and encode malicious rich-text content, the content rendering process in the website frontend is vulnerable to cross-site scripting. Corresponding rendering instructions via TypoScript functionality HTMLparser does not consider all potentially malicious HTML tag & attribute combinations per default. In default scenarios, a valid backend user account is needed to exploit this vulnerability. In case custom plugins used in the website frontend accept and reflect rich-text content submitted by users, no authentication is required. Update to TYPO3 versions 7.6.53 ELTS, 8.7.42 ELTS, 9.5.29, 10.4.19, 11.3.2 that fix the problem described.
INFO
Published Date :
Aug. 10, 2021, 5:15 p.m.
Last Modified :
Aug. 19, 2021, 3:51 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.7
Exploitability Score :
2.8
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-2021-32768.
| URL | Resource |
|---|---|
| https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-c5c9-8c6m-727v | Third Party Advisory |
| https://typo3.org/security/advisory/typo3-core-sa-2021-013 | 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-2021-32768 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-32768 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.
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CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Aug. 19, 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:N/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Changed Reference Type https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-c5c9-8c6m-727v No Types Assigned https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-c5c9-8c6m-727v Third Party Advisory Changed Reference Type https://typo3.org/security/advisory/typo3-core-sa-2021-013 No Types Assigned https://typo3.org/security/advisory/typo3-core-sa-2021-013 Vendor Advisory Added CWE NIST CWE-79 Added CPE Configuration OR *cpe:2.3:a:typo3:typo3:*:*:*:*:elts:*:*:* versions from (including) 7.0.0 up to (including) 7.6.52 *cpe:2.3:a:typo3:typo3:*:*:*:*:elts:*:*:* versions from (including) 8.0.0 up to (including) 8.7.41 *cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* versions from (including) 9.0.0 up to (including) 9.5.28 *cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* versions from (including) 10.0.0 up to (including) 10.4.18 *cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* versions from (including) 11.0.0 up to (including) 11.3.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-32768 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-2021-32768
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} 0.00%
score
0.35140
percentile