CVE-2015-8755

Typo3 XSS Vulnerability

5.4 MediumFix available

Multiple cross-site scripting (XSS) vulnerabilities in unspecified backend components in TYPO3 6.2.x before 6.2.16 and 7.x before 7.6.1 allow remote authenticated editors to inject arbitrary web script or HTML via unknown vectors.

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

1.14%Up 0.1 points since Feb 4, 2022

What each source reports

NVD Score used 5.4

Record: CVE-2015-8755
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-2015-8755
Updated: 2026-11-02

EUVDEUVD-2022-2510 No score

Record: EUVD-2022-2510
Updated: 2026-11-03

GitHub AdvisoriesGHSA-56f9-5563-m2h7 5.4

Typo3 XSS Vulnerability

Record: GHSA-56f9-5563-m2h7
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-56f9-5563-m2h7 5.4

Typo3 XSS Vulnerability

Record: GHSA-56f9-5563-m2h7
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` Packagist	6.2 up to 6.2.16	6.2.16
`typo3/cms` Packagist	7.0 up to 7.6.1	7.6.1
`typo3/cms` Packagist	6.2 up to 6.2.16, plus listed versions 6.2.06.2.16.2.106.2.10-rc16.2.11 Show 12 moreShow less 6.2.126.2.136.2.146.2.156.2.26.2.36.2.46.2.56.2.66.2.76.2.86.2.9	6.2.16
`typo3/cms` Packagist	7.0 up to 7.6.1, plus listed versions 7.0.07.0.17.0.27.1.07.2.0 Show 5 moreShow less 7.3.07.3.17.4.07.5.07.6.0	7.6.1

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-2015-8755 is a medium vulnerability (CVSS 5.4) in Typo3, published January 8, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.14%, the 66th percentile. Fixed in typo3/cms 6.2.16.