CVE-2010-3659

TYPO3 Cross-site Scripting vulnerability in the extension manager and backend forms

5.4 MediumFix available

Multiple cross-site scripting (XSS) vulnerabilities in TYPO3 CMS 4.1.x before 4.1.14, 4.2.x before 4.2.13, 4.3.x before 4.3.4, and 4.4.x before 4.4.1 allow remote authenticated backend users to inject arbitrary web script or HTML via unspecified parameters to the extension manager, or unspecified parameters to unknown backend forms.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

1.28%Up 0.1 points since Feb 4, 2022

What each source reports

NVD Score used 5.4

Record: CVE-2010-3659
CVSS 3.0: 5.4 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0: 3.5 LowAV:N/AC:M/Au:S/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

Record: CVE-2010-3659
Updated: 2026-11-02

EUVDEUVD-2022-4422 No score

Record: EUVD-2022-4422
Updated: 2026-11-03

GitHub AdvisoriesGHSA-jr79-65xr-q7cx 5.4

TYPO3 Cross-site Scripting vulnerability in the extension manager and backend forms

Record: GHSA-jr79-65xr-q7cx
CVSS 3.0: 5.4 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSVGHSA-jr79-65xr-q7cx 5.4

TYPO3 Cross-site Scripting vulnerability in the extension manager and backend forms

Record: GHSA-jr79-65xr-q7cx
CVSS 3.0: 5.4 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

typo3

Affected packages

Affected packages
Package	Affected	Fixed
`typo3/cms-backend` Packagist	4.1.0 up to 4.1.14	4.1.14
`typo3/cms-backend` Packagist	4.2.0 up to 4.2.13	4.2.13
`typo3/cms-backend` Packagist	4.3.0 up to 4.3.4	4.3.4
`typo3/cms-backend` Packagist	4.4.0 up to 4.4.1	4.4.1
`typo3-src` Debian:5.0 From an advisory covering 16 CVEs	before 4.2.5-1+lenny4, plus listed versions 4.2.5-14.2.5-1+lenny14.2.5-1+lenny24.2.5-1+lenny3	4.2.5-1+lenny4

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
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-2010-3659 is a medium vulnerability (CVSS 5.4) in Typo3, published August 29, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.28%, the 70th percentile. Fixed in typo3/cms-backend 4.1.14.