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.
Description as published by the source, in English.
Key facts
Published
2026-06-20
Last modified
2026-07-11
Assigned by
security@joomla.org
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Scored by
nvd@nist.gov (NVD Primary)
Probability of exploitation
24.3 %
higher than 98 %
of all known vulnerabilities
EPSS, next 30 days, model v2026.06.15
Fix available
Not registered in the sources
Actively exploited
CISA added this vulnerability to the Known Exploited Vulnerabilities
catalogue on 2026-07-10,
with a remediation deadline of 2026-07-13 for US federal agencies.
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.
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
Attack techniques
Derived through the weakness type: CVE to CWE to CAPEC to ATT&CK.
This shows which techniques the weakness class is historically used for.
It does not assert that this vulnerability has been exploited that way.
