Liferay Portal/DXP API Endpoint externalReferenceCode cross site scripting
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.8 | $0-$5k | 0.00 |
Summary
A vulnerability identified as problematic has been detected in Liferay Portal and DXP. This impacts an unknown function of the component API Endpoint. Performing a manipulation of the argument externalReferenceCode results in cross site scripting. This vulnerability was named CVE-2025-43802. The attack may be initiated remotely. There is no available exploit.
Details
A vulnerability classified as problematic has been found in Liferay Portal and DXP (affected version not known). This affects some unknown functionality of the component API Endpoint. The manipulation of the argument externalReferenceCode with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:
Stored cross-site scripting (XSS) vulnerability in a custom object’s /o/c/<object-name> API endpoint in Liferay Portal 7.4.3.51 through 7.4.3.109, and Liferay DXP 2023.Q3.1 through 2023.Q3.4, 7.4 update 51 through update 92, and 7.3 update 33 through update 35. allows remote attackers to inject arbitrary web script or HTML via the externalReferenceCode parameter.
The advisory is shared at liferay.dev. This vulnerability is uniquely identified as CVE-2025-43802 since 04/17/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-2064). If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Affected
- Liferay Portal
- Liferay DXP
Product
Type
Vendor
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 4.8VulDB Meta Temp Score: 4.8
VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 6.1
NVD Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Cross site scriptingCWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
04/17/2025 CVE reserved09/16/2025 Advisory disclosed
09/16/2025 VulDB entry created
12/12/2025 VulDB entry last update
Sources
Advisory: liferay.devStatus: Confirmed
CVE: CVE-2025-43802 (🔒)
GCVE (CVE): GCVE-0-2025-43802
GCVE (VulDB): GCVE-100-324333
CERT Bund: WID-SEC-2025-2064 - Liferay Portal und DXP: Mehrere Schwachstellen
Entry
Created: 09/16/2025 08:08Updated: 12/12/2025 17:10
Changes: 09/16/2025 08:08 (66), 09/16/2025 16:36 (7), 12/12/2025 17:10 (12)
Complete: 🔍
Cache ID: 216::103
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
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