CVE-2026-4103
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.4
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- EPSS probability
- 0.18%
- CWE
- CWE-79
- Published
- 2026-09-14
- Last modified
- 2026-09-14
Affected products
- WSO2 WSO2 API Control Plane
- WSO2 WSO2 API Control Plane
- WSO2 WSO2 API Manager
- WSO2 WSO2 API Manager
- WSO2 WSO2 API Manager
- WSO2 WSO2 API Manager
- WSO2 WSO2 API Manager
- WSO2 WSO2 API Manager
Weakness type
Related vulnerabilities
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- CVE-2026-90943 — parallax filament-comments through 3.0.0 Stored XSS via Comment Body
- CVE-2026-90561 — Strapi 4.x through 4.26.2 and 5.x before 5.48.1 Stored XSS via WYSIWYG
- CVE-2026-89256 — AVideo Bookmark Plugin Stored XSS via Chapter Names
- CVE-2026-89255 — AVideo LoginControl Stored XSS via PGP Public Key
- CVE-2026-89254 — AVideo CustomizeUser Stored XSS via field_name Parameter
- CVE-2026-89253 — AVideo Stored XSS via donationLink in watch page button
- CVE-2026-89249 — AVideo YPTWallet Stored XSS via CryptoWallet Configuration