CVE-2015-3989

concrete5 vulnerable to Cross-site Scripting

4.3 MediumFix available

Multiple cross-site scripting (XSS) vulnerabilities in concrete5 before 5.7.4 allow remote attackers to inject arbitrary web script or HTML via vectors related to private messages or other unspecified vectors.

Exploit likelihood

0.93%Down 0.1 points since Feb 4, 2022

What each source reports

NVD Score used 4.3

Record: CVE-2015-3989
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-2015-3989
Updated: 2026-11-02

EUVDEUVD-2015-4019 No score

Record: EUVD-2015-4019
Updated: 2026-11-03

GitHub AdvisoriesGHSA-jxhp-rwqv-9fjj 1.3

concrete5 vulnerable to Cross-site Scripting

Record: GHSA-jxhp-rwqv-9fjj
CVSS 4.0: 1.3 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:U
Weakness: CWE-79
Updated: 2026-11-02

OSVGHSA-jxhp-rwqv-9fjj 1.3

concrete5 vulnerable to Cross-site Scripting

Record: GHSA-jxhp-rwqv-9fjj
CVSS 4.0: 1.3 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:U
Weakness: CWE-79
Updated: 2026-11-02

Affected products

concrete5

Affected packages

Affected packages
Package	Affected	Fixed
`concrete5/concrete5` Packagist	before 5.7.4	5.7.4

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-2015-3989 is a medium vulnerability (CVSS 4.3) in Concrete5, published May 15, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.93%, the 60th percentile. Fixed in concrete5/concrete5 5.7.4.