XSS in TYPO3
CVE-2021-32668
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 error messages are not properly encoded, the components _QueryGenerator_ and _QueryView_ are vulnerable to both reflected and persistent cross-site scripting. A valid backend user account having administrator privileges is needed to exploit this vulnerability. TYPO3 versions 9.5.29, 10.4.18, 11.3.1 contain a patch for this issue.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.006 (46.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 46.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
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)
References
- github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-6mh3-j5r5-2379 (Third Party Advisory)
- typo3.org/security/advisory/typo3-core-sa-2021-010 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-32668?
- CVE-2021-32668 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-2021-32668?
- Medium severity. CVSS v3 base score is 6.4 out of 10.