VulnerabilityDeferred

CVE-2026-42538

This also creates another instance of a Cross-Site Scripting (XSS) vulnerability.

MEDIUM 6.3EPSS 0.18%

Does this matter?

Lower severity and a low EPSS score (0.18%). Track it; it rarely justifies an emergency change on its own.

Description

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.

CVSS 3.1: 6.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
EPSS: 0.18% probability · 7th percentile
CISA KEV: Not listed
Weakness: CWE-434
Source: security-advisories@github.com

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.