CVE-2008-5656

typo3/cms-felogin Cross-site Scripting vulnerability

4.3 MediumFix available

Cross-site scripting (XSS) vulnerability in the frontend plugin for the felogin system extension in TYPO3 4.2.0, 4.2.1 and 4.2.2 allows remote attackers to inject arbitrary web script or HTML via unknown vectors.

Exploit likelihood

1.05%Down 0.1 points since Feb 4, 2022

What each source reports

NVD Score used 4.3

Record: CVE-2008-5656
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

Record: CVE-2008-5656
Updated: 2026-11-02

EUVDEUVD-2008-5627 No score

Record: EUVD-2008-5627
Updated: 2026-11-03

GitHub AdvisoriesGHSA-xvx2-wqf5-jjgv 2.1

typo3/cms-felogin Cross-site Scripting vulnerability

Record: GHSA-xvx2-wqf5-jjgv
CVSS 4.0: 2.1 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P
Weakness: CWE-79
Updated: 2026-11-02

OSVGHSA-xvx2-wqf5-jjgv 2.1

typo3/cms-felogin Cross-site Scripting vulnerability

Record: GHSA-xvx2-wqf5-jjgv
CVSS 4.0: 2.1 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P
Weakness: CWE-79
Updated: 2026-11-02

Affected products

typo3

Affected packages

Affected packages
Package	Affected	Fixed
`typo3/cms-felogin` Packagist	4.2.0 up to 4.2.3	4.2.3

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2008-5656 is a medium vulnerability (CVSS 4.3) in Typo3, published December 17, 2008. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.05%, the 64th percentile. Fixed in typo3/cms-felogin 4.2.3.