CVE-2009-0256 json
Authentication library in TYPO3 vulnerable to session fixation
published 2009-01-22 17 y ago modified 2026-06-16 4 mo ago also GHSA-q45q-5233-229p , EUVD-2022-4874
- cvss
- 7.5
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- packagist typo3/cms 4.0.10, 4.1.8, 4.2.4
Exploit prediction
1.79% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | typo3/cms | >=4.0.0, <4.0.10 >=4.1.0, <4.1.8 >=4.2.0, <4.2.4 |
4.0.10 4.1.8 4.2.4 |
Classification
References
-
debian.org
/security/2009/dsa-1711
vendor-advisory, web
-
typo3.org
/teams/security/security-bulletins/typo3-sa-2009-001/
vendor-advisory
-
secunia.com
/advisories/33617
third-party-advisory, vendor-advisory
-
securityfocus.com
/bid/33376
vdb-entry
-
exchange.xforce.ibmcloud.com
/vulnerabilities/48133
vdb-entry, web
-
secunia.com
/advisories/33679
third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2009-0256
advisory
-
github.com
/TYPO3/typo3
package
-
web.archive.org
/web/20111210005350/http://www.securityfocus.com/bid/33376
web
-
typo3.org
/teams/security/security-bulletins/typo3-sa-2009-001
web
Sources
- CVE List CVE-2009-0256
- GitHub Advisory GHSA-q45q-5233-229p
- NVD CVE-2009-0256
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.