Is CVE-2022-1439 actively exploited?

Yes. KEV Intelligence tracks CVE-2022-1439 as a known exploited vulnerability. Confidence is high.

What exploitation activity has KEV Intelligence observed?

KEV Intelligence has not yet recorded sensor-observed exploitation attempts for CVE-2022-1439. Our sensors continue to monitor for activity targeting this CVE.

Which versions are affected?

CVE-2022-1439 affects microweber microweber/microweber. Reported affected version: unspecified to < 1.2.15.

No. CVE-2022-1439 is not currently listed in CISA KEV.

Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2022-1439

Q: How should organizations remediate it?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Q: Is it in CISA KEV?

No. CVE-2022-1439 is not currently listed in CISA KEV.

microweber/microweber Cross-Site Scripting

microweber / microweber/microweber · affected before 1.2.15

View live feed Monitor via API Watch CVE

Severity: CVSS 6.3 · Medium
Confidence: High
Exploit status: Exploited in the wild
EPSS: 3.3%
First observed: —
Last observed: —

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2022-1439 is an unauthenticated vulnerability affecting microweber microweber/microweber. Reflected XSS on demo.microweber.org/demo/module/ in GitHub repository microweber/microweber prior to 1.2.15. Execute...

Is it exploited?

Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is high.

Who is affected?

microweber / microweber/microweber affected before 1.2.15.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

Reflected XSS on demo.microweber.org/demo/module/ in GitHub repository microweber/microweber prior to 1.2.15

Reflected XSS on demo.microweber.org/demo/module/ in GitHub repository microweber/microweber prior to 1.2.15. Execute Arbitrary JavaScript as the attacked user.

It's the only payload I found working, you might need to press "tab" but there is probably a paylaod that runs without user interaction.

Vendor Product Affected Status

microweber microweber/microweber Before 1.2.15 Affected

Published: 22 Apr 2022
Exploitation Reported: 22 Apr 2022
Attack vector: Remote
Complexity: Low
Privileges: None
User interaction: Required

CVE References

CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2022-1439
huntr.dev/bounties/86f6a762-0f3d-443d-a676-20f8496907e0 huntr.dev · CVE Record https://huntr.dev/bounties/86f6a762-0f3d-443d-a676-20f8496907e0
GitHub — microweber/microweber github.com · CVE Record https://github.com/microweber/microweber/commit/ad3928f67b2cd4443f432...

Exploitation evidence

Why KEV Intelligence marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

The Shadowserver

Recorded 22 Apr 2022

Independent exploitation attestation added to the KEV Intelligence record.

Proof of concept available

Nuclei Templates

Recorded 12 Jun 2026

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.

Learn about Pro API access

Source	Added
The Shadowserver First	2022-04-22 16:30 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets: 0
User-Agents: 0

Raw values available in Pro and Enterprise.

Scanner coverage

Nuclei template detected 25 Apr 2025.

View Nuclei template

Virtual patch status

No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner	Reference	Detected
Nuclei	https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2022/CVE-2022-1439.yaml	25 Apr 2025

Risk and context

Severity, weaknesses, and research context

CVSS v3.0

6.3 Medium

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

EPSS

3.3%

Weaknesses

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE-79

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

Microweber <1.2.15 - Cross-Site Scripting

nuclei · Created Unknown

Timeline

From disclosure to observed exploitation

12 Jun 2026
Public PoC available

Public proof-of-concept code published
25 Apr 2025
Nuclei template available

Scanner coverage available
22 Apr 2022
Added to KEV Intelligence KEV Feed

High-confidence, third-party attested exploitation
22 Apr 2022
CVE published

Vulnerability disclosed publicly
22 Apr 2022
CVE ID reserved

Identifier reserved by the CNA

Pro API

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Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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Evidence confidence and provenance
First-party sensor telemetry
PoC and scanner references
Affected versions and enrichment
Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2022-1439

Free JSON includes basic KEV fields

{
  "cve_id": "CVE-2022-1439",
  "confidence": "High",
  "cvss_score": 6.3,
  "cvss_estimated": false,
  "epss_score": 0.03258,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}

Early warning alerts

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