Exploited vulnerability · CISA KEV

Is CVE-2026-48939 exploited? Yes: in CISA KEV since 10 Jul 2026

Gociux · iCagenda · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2026-48939, iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 10 Jul 2026, 20 days after it was published. It affects iCagenda. If you run it, CISA's required action is: 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.

What it is

iCagenda contains an unrestricted upload of file with dangerous type vulnerability that allows the upload of arbitrary files in the file attachment feature, ultimately resulting in PHP code upload and execution.

What to do

1. Check whether you run it. Look for iCagenda in your asset inventory, including appliances and cloud images. Stack check lists every exploited iCagenda CVE at once.
2. Apply the fix. 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.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 20 Jun 2026.
4. Get told next time. Email alerts when CISA adds a CVE for iCagenda.

References

• www.icagenda.com/
• nvd.nist.gov/vuln/detail/CVE-2026-48939

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in July 2026 · act-now radar.