iCagenda Joomla Event Calendar Extension Accepts Unrestricted File Uploads Without Authentication, Enabling Remote Code Execution; CISA's July 13th KEV Deadline Has Passed

Last refreshed2026-09-27

Status: KEV | Advisory ID: CVE-2026-48939

Key Details

CVE	CVE-2026-48939
Vulnerability Name	iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability
Affected products	iCagenda iCagenda
Exploitation status	Listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, indicating confirmed active exploitation.
Classified as	CWE-434 (Unrestricted Upload of File with Dangerous Type)
KEV listing	Added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-07-10.
Exploitation prediction (EPSS)	20.07% probability of exploitation in the next 30 days (97% percentile) -- FIRST.org's EPSS model.
Federal remediation deadline	2026-07-13 (CISA KEV, Binding Operational Directive).

Affected Products, Subsystems & Sectors

Vendor	Product	Affected Versions	Patch Status
iCagenda	iCagenda

Vendor

Product

Affected Versions

Patch Status

iCagenda

Subsystems	General OT
Sectors	Multiple

What to Know

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.

What to Do

Monitor iCagenda's web page for any future patch releases.

References

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-48939
CVE	https://www.cve.org/CVERecord?id=CVE-2026-48939

Source

Reference

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-48939

CVE

https://www.cve.org/CVERecord?id=CVE-2026-48939

KEV Required Action

Field	Value
KEV Link	https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Date Added to KEV	2026-07-10
Required Action Due Date	2026-07-13
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.

Field

Value

KEV Link

https://www.cisa.gov/known-exploited-vulnerabilities-catalog

Date Added to KEV

2026-07-10

Required Action Due Date

2026-07-13

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.