iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability
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.
MANARTECH SECURITY ALERT
iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability
CVE Numbers
CVE-2026-48939
Affected Product
iCagenda — iCagenda
Threat Description
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.
Severity Scale
CRITICALHIGHMEDIUMLOW
Severity
CRITICAL
Affected Versions
To be reviewed
Recommended Mitigation
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Reference Links
https://www.icagenda.com/
https://github.com/Polosss/By-Poloss..-..CVE-2026-48939
https://mysites.guru/blog/icagenda-zero-day-file-upload-rce/
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48939
https://www.icagenda.com/docs/changelog/icagenda-3-9-15
https://www.icagenda.com/docs/changelog/icagenda-4-0-8
https://nvd.nist.gov/vuln/detail/CVE-2026-48939
