High severity · published Mar 23, 2021
CVE-2021-21339
TYPO3 is an open source PHP based web content management system
7.5
CVSS
0.9%
EPSS
No
On KEV
Description
TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 6.2.57, 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 user session identifiers were stored in cleartext - without processing of additional cryptographic hashing algorithms. This vulnerability cannot be exploited directly and occurs in combination with a chained attack - like for instance SQL injection in any other component of the system. This is fixed in versions 6.2.57, 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TY
Typo3 · Typo3
6.2.0 before 6.2.57; 7.0.0 before 7.6.51; 8.0.0 before 8.7.40; 9.0.0 before 9.5.25; 10.0.0 before 10.4.14; 11.0.0 before 11.1.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-21339
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-21339
Third Party Advisory
https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-qx3w-4864-94ch
Release Notes
https://packagist.org/packages/typo3/cms-core
Vendor Advisory
https://typo3.org/security/advisory/typo3-core-sa-2021-006
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TYPO3 is a free and open source Content Management Framework