Authenticated JavaScript execution via unescaped DDM parameters
Published Aug 20, 2025 · Updated Aug 29, 2025
Reflected XSS in Liferay Portal and DXP allows remote authenticated users to execute JavaScript through Dynamic Data Mapping requests. RenderStructureFieldMVCResourceCommand copied the portletNamespace and namespace request parameters into an HTML rendering context without attribute escaping. High-privilege access is required; successful injection runs in the browser context of a rendered Dynamic Data Mapping response and can expose data available to that context.
Summary
What happened
Reflected XSS in Liferay Portal and DXP allows remote authenticated users to execute JavaScript through Dynamic Data Mapping requests. RenderStructureFieldMVCResourceCommand copied the portletNamespace and namespace request parameters into an HTML rendering context without attribute escaping. High-privilege access is required; successful injection runs in the browser context of a rendered Dynamic Data Mapping response and can expose data available to that context.
The record
- CVE
- CVE-2025-43746
- Published
- Aug 20, 2025
- Updated
- Aug 29, 2025
- Vendor
- Liferay
- Product
- Liferay Portal
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Aug 20, 2025CVE publishedPublication date reported by the CVE source.
- Aug 29, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=7.4.0 <=7.4.3.132
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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