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No exploitation reportedAwaiting NVD analysis

CVE-2024-12139

Content Spoofing via Error Handling in Multiple WSO2 Products Enables Social Engineering Attacks

No exploitation reported by the sources we read.

  • Published2026-11-02
  • WeaknessCWE-116

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-11-0217:34CVE publishedCNA

Observed activity

isMalicious corpus · updated 2026-11-02 15:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-12139?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-12139?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

Products declared by the CNA

As WSO2, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • WSO2 API Managerother versions: not affected
    Affected
    • ≥ 3.2.1, < 3.2.1.49fixed in 3.2.1.49custom
    • ≥ 4.1.0, < 4.1.0.210fixed in 4.1.0.210custom
    • ≥ 4.2.0, < 4.2.0.148fixed in 4.2.0.148custom

    Not affected < 3.2.1 (status unknown)

  • WSO2 Identity Serverother versions: not affected
    Affected
    • ≥ 5.10.0, < 5.10.0.346fixed in 5.10.0.346custom
    • ≥ 5.11.0, < 5.11.0.385fixed in 5.11.0.385custom
    • ≥ 6.0.0, < 6.0.0.229fixed in 6.0.0.229custom

    Not affected < 5.10.0 (status unknown)

  • WSO2 Identity Server as Key Managerother versions: not affected
    Affected
    • ≥ 5.10.0, < 5.10.0.339fixed in 5.10.0.339custom

    Not affected < 5.10.0 (status unknown)

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-02

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2024-12139 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-11-02
  • CISA-ADPSSVC decisionnone2026-11-02
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.14.32026-11-02
  • CISA-ADPweakness (CWE)CWE-1162026-11-02

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Published
2026-11-02
Last Modified
2026-11-02
NVD status
Awaiting Analysis

Frequently asked questions

What is CVE-2024-12139?

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.

Is CVE-2024-12139 actively exploited?

Active exploitation of CVE-2024-12139 has not been confirmed.

What is the CVSS score for CVE-2024-12139?

CVE-2024-12139 has a CVSS v3 base score of 4.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

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Sources for this record