CVE-2026-48939: Joomlic Icagenda

What is CVE-2026-48939?

A vulnerability in the iCagenda extension for Joomla allows the upload of arbitrary files in the file attachment feature, ultimately resulting in PHP code upload and execution.

CVSS9.8 NVD 3.1

SeverityCRITICAL

Exploitation In the wild In CISA KEV

EPSS83% · P100

Triage statusActive Exploit

ActionPatch immediately

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

NVD published2026-06-20

NVD last modified2026-07-11

Timeline

2026-06-20Published to the U.S. National Vulnerability Database (NVD)
2026-07-10Added to the CISA Known Exploited Vulnerabilities (KEV) catalog
2026-07-11NVD record last updated
2026-07-13CISA federal remediation deadline (BOD 22-01)

CISA Known Exploited Vulnerability

iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability

Added to KEV2026-07-10

Federal patch deadline2026-07-13

Known ransomware useUnknown

Affected product

Joomlic Icagenda

Remediation Steps

Check CISA Known Exploited Vulnerabilities Catalog for iCagenda advisory
Apply vendor patch for unrestricted file upload vulnerability
Review upload directories for any suspicious or unexpected files
Restrict file upload functionality to authenticated users with appropriate permissions

References

Referenced in our briefings & reports

Vulnerability Priority Report – Week 1 of August 2026 (August 3 – 9)
Vulnerability Priority Report – Week 4 of July 2026 (July 27 – August 2)
Vulnerability Priority Report – Week 3 of July 2026 (July 20 – 26)
Vulnerability Priority Report – Week 2 of July 2026 (July 13 – 19)
Vulnerability Priority Report – Week 1 of July 2026 (July 6 – 12)

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🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.