CVE-2021-32669 is a vulnerability in TYPO3
Published on July 20, 2021
Cross-Site Scripting in Backend Grid View
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 Analysis
CVE-2021-32669 can be exploited with network access, requires user interaction and a small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2021-32669 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2021-32669
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Affected Versions
TYPO3.CMS:- Version >= 9.0.0, < 9.5.29 is affected.
- Version >= 10.0.0, < 10.4.18 is affected.
- Version >= 11.0.0, < 11.3.1 is affected.
Vulnerable Packages
The following package name and versions may be associated with CVE-2021-32669
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| composer | typo3/cms-core | >= 8.0.0, < 8.7.41 | 8.7.41 |
| composer | typo3/cms-core | >= 9.0.0, < 9.5.28 | 9.5.28 |
| composer | typo3/cms-core | >= 10.0.0, < 10.4.18 | 10.4.18 |
| composer | typo3/cms-core | >= 11.0.0, < 11.3.1 | 11.3.1 |
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.