File disclosure and DoS via uncanonicalized module paths
Published Sep 29, 2025 · Updated Sep 30, 2025
Path traversal in Liferay Portal and DXP ComboServlet allows remote attackers to read CSS or JavaScript files and cause denial of service. ComboServlet passed query-string module paths to resource dispatch without canonicalizing dot segments, so ../ components escaped the intended resource path. No authentication or user interaction is required; repeated query entries also force the same resources to load multiple times, consuming server resources.
Summary
What happened
Path traversal in Liferay Portal and DXP ComboServlet allows remote attackers to read CSS or JavaScript files and cause denial of service. ComboServlet passed query-string module paths to resource dispatch without canonicalizing dot segments, so ../ components escaped the intended resource path. No authentication or user interaction is required; repeated query entries also force the same resources to load multiple times, consuming server resources.
The record
- CVE
- CVE-2025-43813
- Published
- Sep 29, 2025
- Updated
- Sep 30, 2025
- Vendor
- Liferay
- Product
- Liferay Portal
- Classifications
- CWE-22, T1190, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 29, 2025CVE publishedPublication date reported by the CVE source.
- Sep 30, 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 <=7.4.3.107
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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