Vulnerability details
CVE-2026-48939
Actively exploited
icagenda.com iCagenda extension for Joomla
Joomla Extension - icagenda.com - Remote Code Execution in iCaganda extension for Joomla < 4.0.8/3.9.15
CVSS 4.0
10.0Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 10.0Critical | 4.0 | CVEProject cvelistV5 (CNA) (Joomla) | 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/AU:Y/U:Red |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| icagenda.com | iCagenda extension for Joomla | 3.2.1-4.0.7 | CVEProject cvelistV5 (CNA) |
References and advisories
6- https://www.icagenda.com/ product
- https://mysites.guru/blog/icagenda-zero-day-file-upload-rce/ third-party-advisory
- https://www.icagenda.com/docs/changelog/icagenda-3-9-15 patch
- https://www.icagenda.com/docs/changelog/icagenda-4-0-8 patch
- https://github.com/Polosss/By-Poloss..-..CVE-2026-48939 exploit
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48939 government-resource
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Details
- Published
- 2026-06-20
- Last updated
- 2026-08-12
- State
- Published
- Assigner (CNA)
- Joomla
- Kolun priority
- 89 · Critical
CISA KEV catalog
- Date added
- 2026-07-10
- Due date
- 2026-07-13
- Used in ransomware
- Unknown
Exploit prediction (EPSS)
20.06%
Probability of exploitation in 30 days
97.4%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-434Unrestricted Upload of File with Dangerous Type