Vulnerability report

Exploitation Attempts 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

Watch CVE-2026-75949 Browse KEV feed
Severity
CVSS 10.0 · Critical
Confidence
Confirmed
Exploit status
Exploitation Attempts Observed in the Wild
EPSS
0.4%
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.

Have exploitation attempts been observed?

Yes. Previdian sensors have observed 1 exploitation attempt, 1 unique attacker IP, and 1 country targeting CVE-2026-75949. First observed Sep 22, 2026. Confidence is confirmed.

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 Attempts Reported
22 Sep 2026
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
None

Tags

joomla

CVE References

Exploitation evidence

Evidence of exploitation attempts

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

Exploitation Attempts Observed in the Wild

Previdian

Recorded 22 Sep 2026

Previdian sensors observed exploitation attempts targeting this vulnerability.

Exploitation Attempts Observed

Previdian sensor

First observed 22 Sep 2026

Previdian sensors observed exploitation attempts targeting this vulnerability.

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 Sensors First 2026-09-22 13:50 UTC

Operational indicators for this CVE are listed under Detection.

Sensor telemetry

Previdian Sensor Observations

Previdian sensor observations are exploitation attempts targeting this vulnerability. They do not show that the target was vulnerable or that the attempt succeeded. 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 52 days

Daily events observed by Previdian sensors

Updated 11 Nov 2026

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21 Sep 2 Oct 13 Oct 24 Oct 11 Nov

First observed 22 Sep 2026 · Last observed 22 Sep 2026

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Detection

Operational artifacts and observed signals

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

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.

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.

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Risk and context

Severity, weaknesses, and research context

CVSS v4.0

10.0 Critical

Potential damage if exploited. Separate from whether attackers are using it.

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

0.4%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Unrestricted Upload of File with Dangerous Type CWE-434

Timeline

From disclosure to observed exploitation attempts

  1. 02:54 UTC

    Indicator of compromise added

    Indicators of compromise recorded

  2. 02:54 UTC

    Observed by Previdian sensors

    Previdian sensors observed exploitation attempts targeting this vulnerability.

  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

Sample API response 
{
  "cve_id": "CVE-2026-75949",
  "confidence": "Confirmed",
  "cvss_score": 10.0,
  "cvss_estimated": false,
  "epss_score": 0.00428,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": true
  },
  "sensor_telemetry": { "attempts": 1, "sensors": 1 }
}