CVE-2025-8591 json
Reflected Cross-Site Scripting via URL Parameter in Multiple WSO2 Products Enables UI Modification
published 2026-07-06 4 mo ago modified 2026-10-06 33 d ago also EUVD-2025-210428
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
Summary
The software accepts user-supplied input via a URL parameter without adequate output encoding before reflecting it back to the user's browser. This condition allows an attacker to inject malicious script content into pages served by the application.
By leveraging this weakness, an attacker can cause the user's browser to redirect to a malicious website, modify the UI of the webpage, or retrieve information from the browser. However, the impact is mitigated by the use of httpOnly flags on session-related cookies, preventing session hijacking.
Patch / fix
- WSO2 WSO2 Identity Server 5.10.0.381, 5.10.0.384, 6.0.0.255, 7.0.0.131, 7.1.0.21, 7.1.0.51
- WSO2 WSO2 API Manager 3.1.0.355, 3.2.0.459, 3.2.1.78, 4.0.0.380, 4.1.0.243, 4.2.0.183, 4.3.0.94, 4.4.0.58, 4.5.0.43, 4.6.0.7
- WSO2 WSO2 API Control Plane 4.5.0.44, 4.6.0.8
- WSO2 WSO2 Traffic Manager 4.5.0.42, 4.6.0.7
- WSO2 WSO2 Universal Gateway 4.5.0.42, 4.6.0.7
- WSO2 WSO2 Open Banking AM 2.0.0.404
- WSO2 WSO2 Identity Server as Key Manager 5.10.0.375
- WSO2 WSO2 Open Banking IAM 2.0.0.424
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected products
- WSO2 WSO2 Identity Server
- WSO2 WSO2 API Manager
- WSO2 WSO2 API Control Plane
- WSO2 WSO2 Traffic Manager
- WSO2 WSO2 Universal Gateway
- WSO2 WSO2 Open Banking AM
- WSO2 WSO2 Identity Server as Key Manager
- WSO2 WSO2 Open Banking IAM
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
Sources
- CVE List CVE-2025-8591
- NVD CVE-2025-8591
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.