Contao is vulnerable to cross-site scripting in templates

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-65961
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-11-25 19:15:51 UTC
Updated2026-10-18 20:10:00 UTC
DescriptionContao is an Open Source CMS. From version 4.0.0 to before 4.13.57, before 5.3.42, and before 5.6.5, it is possible to inject code into the template output that will be executed in the browser in the front end and back end. This issue has been patched in versions 4.13.57, 5.3.42, and 5.6.5. A workaround for this issue involves not using the affected templates or patch them manually.

Risk And Classification

Primary CVSS: v3.1 4.8 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Problem Types: CWE-87 | CWE-79 | CWE-87 CWE-87: Improper Neutralization of Alternate XSS Syntax

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
3.1[email protected]Secondary3.3LOWCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N
3.1CNADECLARED3.3LOWCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Contao Contao All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Contao Contao affected >= 4.0.0, < 4.13.57 Not specified
CNA Contao Contao affected >= 5.0.0-RC1, < 5.3.42 Not specified
CNA Contao Contao affected >= 5.4.0-RC1, < 5.6.5 Not specified

References

ReferenceSourceLinkTags
github.com/contao/contao/security/advisories/GHSA-68q5-78xp-cwwc [email protected] github.com Vendor Advisory
contao.org/en/security-advisories/cross-site-scripting-in-templates [email protected] contao.org Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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