CVE-2026-42538

6.3 mediumEPSS 0.2%

Medium (6.3). EPSS 0.2% chance of exploitation in the next 30 days.

IRIS is a web collaborative platform that helps incident responders share technical details during investigations. Versions prior to 2.4.28 do not properly validate uploaded files. The application can therefore be misused to host phishing pages, amongst other things. This also creates another instance of a Cross-Site Scripting (XSS) vulnerability. Version 2.4.28 contains a patch.

Severity

CVSS 3.1

6.3 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 6% of CVEs (scores of 2026-10-31)
CWE: CWE-434
Published: 2026-06-04
Modified: 2026-07-22
Record from: the NVD, synced 2026-10-19

References

https://github.com/dfir-iris/iris-web/security/advisories/GHSA-m624-7744-2mhf
http://www.openwall.com/lists/oss-security/2026/05/19/8
https://github.com/dfir-iris/iris-web/security/advisories/GHSA-m624-7744-2mhf

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