CVE-2009-0256

critical

Description

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.

References

https://github.com/advisories/GHSA-q45q-5233-229p

https://exchange.xforce.ibmcloud.com/vulnerabilities/48133

https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-4874

http://www.securityfocus.com/bid/33376

http://www.debian.org/security/2009/dsa-1711

http://typo3.org/teams/security/security-bulletins/typo3-sa-2009-001/

http://secunia.com/advisories/33679

http://secunia.com/advisories/33617

Details

Source: Mitre, NVD

Published: 2009-01-22

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00911