Vulnerability report

Active exploitation observed Confirmed confidence Not in CISA KEV

CVE-2026-49049

Helix3 extension for Joomla

Joomshaper.com / Helix3 extension for Joomla · 1.0-3.1.1

View live feed Monitor via API Watch CVE-2026-49049
Severity
CVSS 7.5 · High
Confidence
Confirmed
Exploit status
Observed in sensors
EPSS
1.0%
First observed
11 Aug 2026
Last observed
10 Sep 2026

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2026-49049 is an unauthenticated vulnerability affecting Joomshaper.com Helix3 extension for Joomla. The Helix3 plugin for Joomla exposes an ajax handler task, that allows unauthenticated attackers to delete...

Is it exploited?

Yes. Previdian sensors observed exploitation attempts with confirmed confidence.

Who is affected?

Joomshaper.com / Helix3 extension for Joomla 1.0-3.1.1.

What should we do?

Patch immediately, validate internet-facing exposure, and monitor for matching requests.

Overview

Helix3 extension for Joomla

The Helix3 plugin for Joomla exposes an ajax handler task, that allows unauthenticated attackers to delete arbitrary files, write arbitrary JSON files and update template parameters.

Vendor Product Affected Status
joomshaper.com Helix3 extension for Joomla 1.0-3.1.1 Affected
Published
29 Jun 2026
Exploitation Reported
11 Aug 2026
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
None

Tags

joomla nuclei_scanner

CVE References

Exploitation evidence

Why Previdian 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

Previdian

Recorded 11 Aug 2026

Previdian independently recorded this as exploited after first seeing it in honeypot sensors.

Active exploitation observed

Previdian sensor

First observed 11 Aug 2026

Previdian first observed exploitation attempts targeting this vulnerability in our honeypot sensors.

Proof of concept available

GitHub

Recorded 04 Jul 2026

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

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

Learn about Pro API access
Source Added
Previdian First 2026-08-11 08:44 UTC

Operational indicators for this CVE are listed under Detection.

Sensor telemetry

First-party evidence of exploitation activity

Previdian sensors recorded exploitation attempts targeting this vulnerability. The cards and chart show volume, unique attackers, and daily activity.

5

Attempts observed

1

Unique attacker IPs

1

Attacker countries

JP

1

Sensors observed

CVE-2026-49049 exploitation attempts over the last 35 days

Daily events observed by Previdian sensors

Updated 13 Sep 2026

0
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
0
0
0
10 Aug 17 Aug 24 Aug 31 Aug 13 Sep

First observed 11 Aug 2026 · Last observed 10 Sep 2026

Pro adds sensor region and window summaries. Enterprise adds raw IPs, paths, User-Agents, and payloads.

Request telemetry access

Detection

Operational artifacts and observed signals

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

Observed signals

Request targets
User-Agents
Callback hosts
1
2
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Virtual patch status

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

Learn about virtual patches →

Attacker IP Indicators

Attacker IP indicators observed · available in Pro and Enterprise.

Sensor-derived attacker IP indicators are available to Pro and Enterprise accounts under Detection and through the Pro API.

Learn about Pro API access

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/2026/CVE-2026-49049.yaml 14 Aug 2026

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS

1.0%

Weaknesses

Improper Access Control CWE-284

Potential Proof of Concepts

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

MataKucing-OFC/CVE-2026-49049

github · Created 2026-09-12 00:39:46 UTC · 0 stars · AI assessment 90%

JoomShaper Helix3 <=3.1.0 - Unauthenticated Arbitrary JSON File Write

nuclei · Created Unknown

Timeline

From disclosure to observed exploitation

  1. Public PoC available

    Public proof-of-concept code published

  2. Nuclei template available

    Scanner coverage available

  3. Indicators of compromise added (2)

    Indicators of compromise recorded

  4. Observed by Previdian sensors

    Evidence-backed exploitation signal

  5. CVE published

    Vulnerability disclosed publicly

  6. CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

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

View Pro pricing Read API docs
  • 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-2026-49049

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2026-49049",
  "confidence": "Confirmed",
  "cvss_score": 7.5,
  "cvss_estimated": false,
  "epss_score": 0.00992,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": true
  },
  "sensor_telemetry": { "attempts": 5, "sensors": 1 }
}