What is CVE-2026-107265?

CVE-2026-107265 is a medium-severity vulnerability in Drupal Leaflet, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-10-30.

How severe is CVE-2026-107265?

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

XSS in Drupal Leaflet

CVE-2026-107265

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Leaflet allows Stored XSS. This issue affects Leaflet versions: from 0.0.0 to 10.4.13.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-30 · last modified 2026-10-30.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.002 (5.3th percentile), scored 2026-10-31.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Drupal Leaflet

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.drupal.org/sa-contrib-2026-204

Frequently asked questions

What is CVE-2026-107265?: CVE-2026-107265 is a medium-severity vulnerability in Drupal Leaflet, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-10-30.
How severe is CVE-2026-107265?: Medium severity. CVSS v3 base score is 5.4 out of 10.