VulnerabilityDeferred

CVE-2026-42543

Versions prior to 2.4.28 are vulnerable to a cross-site request forgery attack, because they use the HTTP method `GET` to change state on the server.

MEDIUM 4.3EPSS 0.17%

Does this matter?

Lower severity and a low EPSS score (0.17%). 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 are vulnerable to a cross-site request forgery attack, because they use the HTTP method `GET` to change state on the server. Version 2.4.28 contains a patch.

CVSS 3.1: 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS: 0.17% probability · 7th percentile
CISA KEV: Not listed
Weakness: CWE-650
Source: security-advisories@github.com

References

https://github.com/dfir-iris/iris-web/security/advisories/GHSA-m73w-v4r5-vw9m
http://www.openwall.com/lists/oss-security/2026/05/19/11
https://github.com/dfir-iris/iris-web/security/advisories/GHSA-m73w-v4r5-vw9m

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