CVE-2026-42543

4.3 mediumEPSS 0.2%

Medium (4.3). 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 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.

Severity

CVSS 3.1

4.3 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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-650
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-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

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