CVE-2026-4103Cross-Site Scripting via HTML Sanitization in WSO2 Publisher and Developer Portals Allows Malicious Script Execution
Updated under an hour ago ()
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It affects WSO2 API Control Plane and 1 other product. Add what you run to find out whether that includes you.
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Insufficient HTML sanitization in the Publisher Portal and Developer Portal allows untrusted user input to be rendered without proper encoding or neutralization. This enables the injection and execution of malicious JavaScript when affected API documents are viewed. Successful exploitation may result in the execution of malicious scripts within the user's browser context when viewing API documentation. Users with permissions to access the API documentation through these portals may be impacted, potentially allowing attackers to perform actions on behalf of the user, depending on their session privileges.
- CVSS
- 6.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- WSO2
- NVD analysis
- Deferred
- Record last updated
- Sep 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
WSO2 WSO2 API Control Plane wso2:api_control_plane (from the name) | from 4.5.0 before 4.5.0.55; from 4.6.0 before 4.6.0.19 | CNA record |
WSO2 WSO2 API Manager wso2:api_manager (from the name) | before 3.2.0 status unknown; from 3.2.0 before 3.2.0.470; from 3.2.1 before 3.2.1.89; from 4.1.0 before 4.1.0.254; from 4.2.0 before 4.2.0.194; from 4.3.0 before 4.3.0.105; from 4.4.0 before 4.4.0.69; from 4.5.0 before 4.5.0.54; and 1 more ranges | CNA record |
References
- https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-4844/vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.