CVE-2021-32768

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Summary

CVECVE-2021-32768
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-08-10 17:15:00 UTC
Updated2021-08-19 15:51:00 UTC
DescriptionTYPO3 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.

Risk And Classification

Problem Types: CWE-79

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Typo3 Typo3 All All All All
Application Typo3 Typo3 All All All All
Application Typo3 Typo3 All All All All
Application Typo3 Typo3 All All All All
Application Typo3 Typo3 All All All All

References

ReferenceSourceLinkTags
TYPO3-CORE-SA-2021-013: Cross-Site Scripting via Rich-Text Content MISC typo3.org
Cross-Site Scripting via Rich-Text Content · Advisory · TYPO3/typo3 · GitHub CONFIRM github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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