CVE-2024-12139

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 59/100
Published: 2026-11-02 Modified: 2026-11-09 First seen: 2026-11-02 Status: active

Attack Surface

Network Low Complexity No Auth

CVSS Vector Breakdown

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

Description

The error handling implementation fails to properly sanitize or validate user-supplied input within URL parameters under specific conditions. This allows end-users to manipulate the error messages that are displayed by the application. By exploiting this vulnerability, malicious actors can inject arbitrary content into error messages. This enables them to perform social engineering attacks, such as phishing or credential theft, by replacing legitimate error messages with malicious content, misleading users into compromising sensitive information or taking harmful actions.

Weakness Classification (1)

Affected Software (14)

VendorProductVersion
WSO2 WSO2 API Manager 3.2.1 < 3.2.1.49
WSO2 WSO2 API Manager 4.1.0 < 4.1.0.210
WSO2 WSO2 API Manager 4.2.0 < 4.2.0.148
WSO2 WSO2 API Manager 3.2.1 < 3.2.1.49
WSO2 WSO2 API Manager 4.1.0 < 4.1.0.210
WSO2 WSO2 API Manager 4.2.0 < 4.2.0.148
WSO2 WSO2 Identity Server 5.10.0 < 5.10.0.346
WSO2 WSO2 Identity Server 5.11.0 < 5.11.0.385
WSO2 WSO2 Identity Server 6.0.0 < 6.0.0.229
WSO2 WSO2 Identity Server 5.10.0 < 5.10.0.346
WSO2 WSO2 Identity Server 5.11.0 < 5.11.0.385
WSO2 WSO2 Identity Server 6.0.0 < 6.0.0.229
WSO2 WSO2 Identity Server as Key Manager 5.10.0 < 5.10.0.339
WSO2 WSO2 Identity Server as Key Manager 5.10.0 < 5.10.0.339

Bug Bounty Relevance

59 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

4.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

EPSS — Exploitation Probability

0.21%
Raw Score 0.002140
Percentile 11.8%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00214
2026-11-12
0.00214
2026-11-10
0.00214
2026-11-09
0.00214
2026-11-08
0.00214
2026-11-07
0.00214
2026-11-06
0.00214
2026-11-05
0.00214
2026-11-04
0.00214
2026-11-03
0.00214

Intelligence Sources

mitre ref →
nvd ref →