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CVE-2009-0256

HIGH · CVSS 7.5EPSS 1.8%EU EUVD

Session fixation vulnerability in the authentication library in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0 through 4.2.3 allows remote attackers to hijack web sessions via unspecified vectors related to (1) frontend and (2) backend authentication.

Key facts

CVSS score
7.5 (v2.0)
Severity
HIGH
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness (CWE)
CWE-287
EPSS score
1.8% (79th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2022-4874)
Published
January 22, 2009
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2022-4874 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3
  • typo3 / typo3

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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