What is CVE-2021-32669?

CVE-2021-32669 is a medium-severity vulnerability in Typo3, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2021-07-20.

How severe is CVE-2021-32669?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Typo3

CVE-2021-32669

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 settings for _backend layouts_ are not properly encoded, the corresponding grid 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 vulnerability.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (45.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N.

Affected products

Typo3
Typo3 Typo3.cms — versions >= 9.0.0, < 9.5.29, >= 10.0.0, < 10.4.18, >= 11.0.0, < 11.3.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
security-advisories@github.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-32669?: CVE-2021-32669 is a medium-severity vulnerability in Typo3, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2021-07-20.
How severe is CVE-2021-32669?: Medium severity. CVSS v3 base score is 6.4 out of 10.