Vulnerability report

Active exploitation observed Confirmed confidence Not in CISA KEV

CVE-2026-75949

J-BusinessDirectory extension for Joomla Arbitrary File Access

Cmsjunkie.com / J-BusinessDirectory extension for Joomla · 1.0.0-6.2.2

View live feed Monitor via API Watch CVE-2026-75949
Severity
CVSS 10.0 · Critical
Confidence
Confirmed
Exploit status
Observed in sensors
EPSS
0.3%
First observed
22 Sep 2026
Last observed
22 Sep 2026

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2026-75949 is an unauthenticated vulnerability affecting Cmsjunkie.com J-BusinessDirectory extension for Joomla. Joomla Extension - cmsjunkie.com - Arbitrary file upload / deletion (path traversal) in...

Is it exploited?

Yes. Previdian sensors observed exploitation attempts with confirmed confidence.

Who is affected?

Cmsjunkie.com / J-BusinessDirectory extension for Joomla 1.0.0-6.2.2.

What should we do?

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

Overview

J-BusinessDirectory extension for Joomla Arbitrary File Access

Joomla Extension - cmsjunkie.com - Arbitrary file upload / deletion (path traversal) in J-BusinessDirectory < 6.2.3 - Upload/remove accepted a client-controlled root (_path_type could point at the component site/admin trees), did not enforce path containment, and used a weak extension check.

CSRF token was also missing on upload/remove.

cmsjunkie.com Affected
J-BusinessDirectory extension for Joomla
1.0.0-6.2.2
Published
19 Aug 2026
Exploitation Reported
22 Sep 2026
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
None

Tags

joomla

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 22 Sep 2026

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

Active exploitation observed

Previdian sensor

First observed 22 Sep 2026

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

Known exploited vulnerability sources

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

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Source Added
Previdian First 2026-09-22 13:50 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.

1

Attempts observed

1

Unique attacker IPs

1

Attacker countries

TR

1

Sensors observed

CVE-2026-75949 exploitation attempts over the last 7 days

Daily events observed by Previdian sensors

Updated 24 Sep 2026

0
0
0
0
1
0
0
18 Sep 19 Sep 20 Sep 21 Sep 22 Sep 23 Sep 24 Sep

First observed 22 Sep 2026 · Last observed 22 Sep 2026

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

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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
1
0

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

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

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

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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.

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Risk and context

Severity, weaknesses, and research context

CVSS v4.0

10.0 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

EPSS

0.3%

Weaknesses

Unrestricted Upload of File with Dangerous Type CWE-434

Timeline

From disclosure to observed exploitation

  1. 02:54 UTC

    Indicator of compromise added

    Indicators of compromise recorded

  2. 02:54 UTC

    Observed by Previdian sensors

    Evidence-backed exploitation signal

  3. 14:40 UTC

    CVE published

    Vulnerability disclosed publicly

  4. 16:11 UTC

    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.

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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-2026-75949

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2026-75949",
  "confidence": "Confirmed",
  "cvss_score": 10.0,
  "cvss_estimated": false,
  "epss_score": 0.00312,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": true
  },
  "sensor_telemetry": { "attempts": 1, "sensors": 1 }
}