What is CVE-2023-49926?

CVE-2023-49926 is a medium-severity vulnerability in Misp, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-12-03.

How severe is CVE-2023-49926?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Misp

CVE-2023-49926

app/Lib/Tools/EventTimelineTool.php in MISP before 2.4.179 allows XSS in the event timeline widget.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-12-03 · last modified 2026-06-22.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (33.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2023-49926?: CVE-2023-49926 is a medium-severity vulnerability in Misp, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-12-03.
How severe is CVE-2023-49926?: Medium severity. CVSS v3 base score is 6.1 out of 10.