CVE-2024-5139

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 62/100
Published: 2026-10-21 Modified: 2026-10-30 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Changed
C: Low
I: Low
A: None

Description

The Authentication Endpoint accepts user-supplied input without sufficient encoding, allowing for the injection of malicious JavaScript payloads. This vulnerability can be triggered by submitting crafted input to the Authentication Endpoint. Successful exploitation allows an attacker to redirect the user's browser to a malicious website, modify the web page's user interface, or extract sensitive information from the browser. However, due to the `httpOnly` flag on session-related cookies, session hijacking is not possible.

Weakness Classification (1)

Affected Software (25)

VendorProductVersion
WSO2 WSO2 API Manager 3.1.0 < 3.1.0.286
WSO2 WSO2 API Manager 3.2.0 < 3.2.0.376
WSO2 WSO2 API Manager 3.2.1 < 3.2.1.10
WSO2 WSO2 API Manager 4.0.0 < 4.0.0.299
WSO2 WSO2 API Manager 4.1.0 < 4.1.0.159
WSO2 WSO2 API Manager 4.2.0 < 4.2.0.91
WSO2 WSO2 API Manager 4.3.0 < 4.3.0.6
WSO2 WSO2 Carbon User Management UI 5.14.127 < 5.14.127.6
WSO2 WSO2 Carbon User Management UI 5.17.5 < 5.17.5.273
WSO2 WSO2 Carbon User Management UI 5.17.118 < 5.17.118.3
WSO2 WSO2 Carbon User Management UI 5.18.187 < 5.18.187.260
WSO2 WSO2 Carbon User Management UI 5.18.248 < 5.18.248.12
WSO2 WSO2 Carbon User Management UI 5.23.8 < 5.23.8.191
WSO2 WSO2 Carbon User Management UI 5.24.8 < 5.24.8.3
WSO2 WSO2 Carbon User Management UI 5.25.92 < 5.25.92.99
WSO2 WSO2 Carbon User Management UI 5.25.705 < 5.25.705.3
WSO2 WSO2 Carbon User Management UI 7.0.78 < 7.0.78.43
WSO2 WSO2 Enterprise Integrator 6.6.0 < 6.6.0.204
WSO2 WSO2 Identity Server 5.10.0 < 5.10.0.310
WSO2 WSO2 Identity Server 6.0.0 < 6.0.0.212
WSO2 WSO2 Identity Server 6.1.0 < 6.1.0.195
WSO2 WSO2 Identity Server 7.0.0 < 7.0.0.64
WSO2 WSO2 Identity Server as Key Manager 5.10.0 < 5.10.0.306
WSO2 WSO2 Open Banking AM 2.0.0 < 2.0.0.336
WSO2 WSO2 Open Banking IAM 2.0.0 < 2.0.0.357

Bug Bounty Relevance

62 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

6.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.23%
Raw Score 0.002270
Percentile 13.5%
Date 2026-10-30

EPSS Trend

2026-10-30
0.00227
2026-10-29
0.00227
2026-10-28
0.00227

Intelligence Sources

mitre ref →
nvd ref →