CVE-2026-48939
iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability
CVSS
9.8
Critical
EPSS
1.5%
p71
KEV
YES
Jul 10, 2026
Exploit Today
71
0-100
Published: Jun 20, 2026 · Last modified: Jul 11, 2026 · CWE-434
Product
iCagenda / iCagenda
Vulnerability
iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability
Added to KEV
Jul 10, 2026
Remediate by
Jul 13, 2026
Known ransomware use
No
Summary description
iCagenda contains an unrestricted upload of file with dangerous type vulnerability that allows the upload of arbitrary files in the file attachment feature, ultimately resulting in PHP code upload and execution.
Required action
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.
Notes
https://www.icagenda.com/#download ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/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.
- www.icagenda.comhttps://www.icagenda.com/
- github.comhttps://github.com/Polosss/By-Poloss..-..CVE-2026-48939
- mysites.guruhttps://mysites.guru/blog/icagenda-zero-day-file-upload-rce/
- www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48939
- www.icagenda.comhttps://www.icagenda.com/docs/changelog/icagenda-3-9-15
- www.icagenda.comhttps://www.icagenda.com/docs/changelog/icagenda-4-0-8