What is CVE-2026-58587?

CVE-2026-58587 is a medium-severity vulnerability in Drupal Canvas, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-07-10.

How severe is CVE-2026-58587?

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

XSS in Drupal Canvas

CVE-2026-58587

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Drupal Canvas allows Cross-Site Scripting (XSS). This issue affects Drupal Canvas versions: from 0.0.0 to 1.4.2, from 1.5.0 to 1.5.2, from 1.6.0 to 1.6.1, from 1.7.0 to 1.7.1.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (16.8th percentile) — read the EPSS interpretation.

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.

Affected products

Drupal Canvas — versions 0.0.0, 1.5.0, 1.6.0
Drupal_canvas_project Drupal_canvas

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

mlhess@drupal.org (Third Party Advisory)

Frequently asked questions

What is CVE-2026-58587?: CVE-2026-58587 is a medium-severity vulnerability in Drupal Canvas, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-07-10.
How severe is CVE-2026-58587?: Medium severity. CVSS v3 base score is 6.1 out of 10.