Security readout for executives and security teams
CVE-2009-0256 affects older TYPO3 4.0.x, 4.1.x, and 4.2.x releases. A session fixation flaw in the authentication library could let a remote attacker hijack frontend or backend web sessions. Business impact depends on whether legacy TYPO3 systems remain reachable and whether administrator sessions are exposed. Exposure is most likely in organizations still running legacy TYPO3 4.0.x, 4.1.x, or 4.2.x, especially internet-facing sites with active logins or administrative backend access. Treat as a legacy-platform remediation item with higher urgency for public or admin-accessible TYPO3 systems. Prioritize discovery first, because modern environments may have no exposure, but any remaining affected instance could create account takeover risk. Mitigation focus: Inventory all TYPO3 instances and identify versions in the affected ranges.; Review TYPO3-SA-2009-001 and Debian DSA-1711 for vendor-approved fixes.; Upgrade or replace affected TYPO3 installations according to vendor guidance..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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CVE-2009-0256 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- typo3-library-session-hijacking(48133)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
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