Summary
generated automatically from NVD dataThe iCagenda extension for Joomla (joomlic icagenda) has an unrestricted file upload flaw (CWE-434) in its file attachment feature. An attacker can upload arbitrary files, including PHP code, and get it executed on the server. The issue carries a CVSS v3.1 score of 9.8 (CRITICAL), with a network attack vector, low complexity, and no privileges or user interaction required. It is listed in the CISA KEV catalog, which confirms active exploitation.
NVD 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.
⚠️ Actively exploited — CISA KEV
This CVE was added to CISA's Known Exploited Vulnerabilities catalog on 2026-07-10. It is confirmed exploited in the wild and must be patched as a priority.
Remediation deadline (US federal agencies): 2026-07-13
EPSS · FIRST.org
20.1%probability of exploitation in the next 30 days
Higher than 97% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-16, recomputed daily by FIRST.org.
In-depth analysis on cveo.tech
We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.
CVSS v3.1 Score
Information
- Published
- 20 juin 2026
- Updated
- 11 juil. 2026
- Status
- Analyzed
- Source
- security@joomla.org
Affected products
Weaknesses (CWE)
References (6)
- https://www.icagenda.com/Product
- https://github.com/Polosss/By-Poloss..-..CVE-2026-48939ExploitThird Party Advisory
- https://mysites.guru/blog/icagenda-zero-day-file-upload-rce/Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48939US Government Resource
Similar CVEs
Other vulnerabilities of type CWE-434
Monitor your products
Get automatic alerts for every new CVE affecting your equipment.