CVE-2026-48939Joomla Extension - icagenda.com - Remote Code Execution in iCaganda extension for Joomla < 4.0.8/3.9.15
Updated under an hour ago ()
Does this affect you?
It affects icagenda.com iCagenda extension for Joomla and 1 other product. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Jul 10, 2026; federal agencies had to remediate by Jul 13, 2026. Treat that date as your deadline.
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Free account, 1 product
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
- 10.0 CRITICAL (v4.0, CNA)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
- Weakness (CWE)
- CWE-434
- Known exploited
- Added to CISA KEV Jul 10, 2026; federal remediation due Jul 13, 2026Apply 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.
- EPSS (exploitation in the next 30 days)
- 20.07% (percentile 97)
- Assigned by
- Joomla
- NVD analysis
- Analyzed
- Record last updated
- Aug 12, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
icagenda.com iCagenda extension for Joomla icagenda.com:icagenda_extension_for_joomla (from the name) | 3.2.1-4.0.7 | CNA record |
joomlic icagenda joomlic:icagenda | from 3.2.1 before 3.9.15; from 4.0.0 before 4.0.8 | NVD |
References
- https://www.icagenda.com/product
- https://github.com/Polosss/By-Poloss..-..CVE-2026-48939exploit, third-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
- https://www.icagenda.com/docs/changelog/icagenda-3-9-15release-notes
- https://www.icagenda.com/docs/changelog/icagenda-4-0-8release-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.