What is CVE-2026-84915?

CVE-2026-84915 is a medium-severity vulnerability in Drupal Component Blocks, classified under Cross-site Scripting. CVSS score: 4.6/10. Published 2026-10-22.

How severe is CVE-2026-84915?

Medium severity. CVSS v3 base score is 4.6 out of 10.

XSS in Drupal Component Blocks

CVE-2026-84915

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Component blocks allows Stored XSS. This issue affects Component blocks versions: from 0.0.0 to 1.2.7.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-22 · last modified 2026-10-22.

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Drupal Component Blocks

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.drupal.org/sa-contrib-2026-123

Frequently asked questions

What is CVE-2026-84915?: CVE-2026-84915 is a medium-severity vulnerability in Drupal Component Blocks, classified under Cross-site Scripting. CVSS score: 4.6/10. Published 2026-10-22.
How severe is CVE-2026-84915?: Medium severity. CVSS v3 base score is 4.6 out of 10.