CVE-2021-32667

Cross-Site Scripting in Page Preview

Description

TYPO3 is an open source PHP based web content management system. Versions 9.0.0 through 9.5.28, 10.0.0 through 10.4.17, and 11.0.0 through 11.3.0 have a cross-site scripting vulnerability. When _Page TSconfig_ settings are not properly encoded, corresponding page preview module (_Web>View_) is vulnerable to persistent cross-site scripting. A valid backend user account is needed to exploit this vulnerability. TYPO3 versions 9.5.29, 10.4.18, 11.3.1 contain a patch for this issue.

References

Link	Tags
https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-8mq9-fqv8-59wf	third party advisory
https://typo3.org/security/advisory/typo3-core-sa-2021-009	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-32667?: CVE-2021-32667 has been scored as a medium severity vulnerability.
How to fix CVE-2021-32667?: To fix CVE-2021-32667, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-32667 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-32667 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-32667?: CVE-2021-32667 affects TYPO3 TYPO3.CMS.

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Description

Category

CWE-79 – Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References

Frequently Asked Questions