# CVE-2026-48939: Joomla Extension - icagenda.com - Remote Code Execution in iCaganda extension for Joomla < 4.0.8/3.9.15

> CVE-2026-48939: Joomla Extension - icagenda.com - Remote Code Execution in iCaganda extension for Joomla < 4.0.8/3.9.15. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2026-48939
Last updated: 2026-08-12T13:58:34Z

- Published: 2026-06-20 11:56 UTC · Updated: 2026-08-12 13:58 UTC · Assigner: Joomla
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 20.1%, 97th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2026-07-10, federal due date 2026-07-13, ransomware use: Unknown
- CWE: CWE-434

## 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.

## CISA 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.

## Affected vendors and products

- icagenda.com: iCagenda extension for Joomla

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-48939)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-48939)
- [https://www.icagenda.com/](https://www.icagenda.com/)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-48939 · Markdown: https://rewindex.com/cve/CVE-2026-48939.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-48939 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:52:28.342Z