CVE-2026-48939

CVE Enrichment

CVSS: 10.0 CRITICAL
EPSS: 20.07%
EPSS Percentile: 97.40%
CISA KEV: YES — Known Exploited Vulnerability

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.

Technical Details

CVSS Version: 4.0
CNA / NVD Source: security@joomla.org
Published: 20-Jun-2026 20:16
Last Modified: 11-Jul-2026 12:16
EPSS Date: 2026-10-12
CWE: CWE-434

CVSS Vector


            CVSS:4.0                            AV:N /
                            AC:L /
                            AT:N /
                            PR:N /
                            UI:N /
                            VC:H /
                            VI:H /
                            VA:H /
                            SC:H /
                            SI:H /
                            SA:H /
                            E:A /
                            CR:X /
                            IR:X /
                            AR:X /
                            MAV:X /
                            MAC:X /
                            MAT:X /
                            MPR:X /
                            MUI:X /
                            MVC:X /
                            MVI:X /
                            MVA:X /
                            MSC:X /
                            MSI:X /
                            MSA:X /
                            S:X /
                            AU:Y /
                            R:X /
                            V:X /
                            RE:X /
                            U:Red

CISA KEV Details

Date Added: 2026-07-10
Remediation Due: 2026-07-13
Known Ransomware Campaign Use: Unknown
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

Affected Products / Versions

joomlic / icagenda
Version / affected range: * · from (inclusive) 3.2.1 · before (exclusive) 3.9.15
cpe:2.3:a:joomlic:icagenda:*:*:*:*:-:joomla\!:*:*
joomlic / icagenda
Version / affected range: * · from (inclusive) 4.0.0 · before (exclusive) 4.0.8
cpe:2.3:a:joomlic:icagenda:*:*:*:*:-:joomla\!:*:*

References

Last enrichment sync: 13-Oct-2026 03:42
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

CVE-2026-48939 Recorded Future Identifies 85 High-Impact Vulnerabilities in July, Many Actively Exploited

CVE (80)

Malware (4)

Threat Actors (8)

Vendors (25)

Products (70)

Tools (1)

Countries (1)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.