TROYANOSYVIRUS
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CVE-2021-32768

MEDIUM
6.1

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.

CVE Details

CVSS v3.1 Score6.1
SeverityMEDIUM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack VectorNETWORK
ComplexityLOW
Privileges RequiredNONE
User InteractionREQUIRED
Published8/10/2021
Last Modified11/21/2024
Sourcenvd
Honeypot Sightings0

Affected Products

typo3:typo3

Weaknesses (CWE)

CWE-79CWE-79

References

https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-c5c9-8c6m-727v(security-advisories@github.com)
https://typo3.org/security/advisory/typo3-core-sa-2021-013(security-advisories@github.com)
https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-c5c9-8c6m-727v(af854a3a-2127-422b-91ae-364da2661108)
https://typo3.org/security/advisory/typo3-core-sa-2021-013(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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