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PatchSiren cyber security CVE debrief

CVE-2026-48939 icagenda.com CVE debrief

The CVE-2026-48939 vulnerability in iCagenda allows for unrestricted upload of files with dangerous types, posing a critical risk. Defenders should assess exposure, prioritize remediation, and verify inventory for potential compromise. This vulnerability, listed in the CISA Known Exploited Vulnerabilities catalog, has a CVSS score of 10, indicating high risk. The vulnerability affects iCagenda installations, and defenders should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.

Vendor
icagenda.com
Product
iCagenda
CVSS
CRITICAL 10
CISA KEV
Listed
Original CVE published
2026-07-10
Original CVE updated
2026-07-10
Advisory published
2026-07-10
Advisory updated
2026-07-10

Who should care

Defenders responsible for iCagenda installations, security teams, and IT administrators should assess exposure and prioritize remediation. They should also verify inventory for potential compromise and review compensating controls for exposed systems while remediation is scheduled and verified. Additionally, they should check relevant monitoring, detection, and logs for exposed assets that need extra review.

Why it matters

CVE-2026-48939 is a critical vulnerability in iCagenda that allows for unrestricted upload of files with dangerous types. Defenders should assess exposure, prioritize remediation, and verify inventory for potential compromise. The vulnerability has a CVSS score of 10 and is listed in the CISA Known Exploited Vulnerabilities catalog, indicating potential exploitation in the wild.

  • Potential for malicious file uploads
  • Critical CVSS score of 10 indicating high risk
  • Listing in CISA Known Exploited Vulnerabilities catalog

Technical summary

The iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability allows attackers to upload malicious files, potentially leading to critical impacts. The vulnerability is identified as CVE-2026-48939 and has a CVSS score of 10. It is listed in the CISA Known Exploited Vulnerabilities catalog, indicating potential exploitation in the wild. Defenders should review the vulnerability details and apply mitigations in accordance with vendor instructions.

Defensive priority

High

Recommended defensive actions

  • Assess exposure and prioritize remediation for iCagenda installations
  • Verify inventory for potential compromise
  • Apply mitigations in accordance with vendor instructions

Evidence notes

The vulnerability is listed in the CISA Known Exploited Vulnerabilities catalog, indicating potential exploitation in the wild. However, specific details about exploitation, victims, or business impact are not provided.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-48939 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-48939

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-48939 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-48939

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.