What is CVE-2026-40201?

CVE-2026-40201 is a medium-severity vulnerability in Diplodoc-platform @Diplodoc/search-extension, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-05-01.

How severe is CVE-2026-40201?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Diplodoc-platform @Diplodoc/search-extension

CVE-2026-40201

@diplodoc/search-extension 1.0.0 through 3.x before 3.0.3 allows stored XSS via the title in a .md file.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (1.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Diplodoc-platform @Diplodoc/search-extension — versions 1.0.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (product)
cve@mitre.org
cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2026-40201?: CVE-2026-40201 is a medium-severity vulnerability in Diplodoc-platform @Diplodoc/search-extension, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-05-01.
How severe is CVE-2026-40201?: Medium severity. CVSS v3 base score is 5.4 out of 10.