How severe is CVE-2026-6367?

CVE-2026-6367 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-6367 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-6367?

CVE-2026-6367 affects Drupal. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-6367?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-6367 have an EU (EUVD) identifier?

Yes. CVE-2026-6367 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31002.

When was CVE-2026-6367 published?

CVE-2026-6367 was published on 2026-05-19 and last updated on 2026-06-17.

CVE-2026-6367

CVE-2026-6367 is a medium-severity vulnerability in Drupal with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-31002
Weakness: CWE-79
Affected product: Drupal
Published: 2026-05-19
Last modified: 2026-06-17

Description

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Drupal core allows Cross-Site Scripting (XSS). This issue affects Drupal core: from 11.3.0 before 11.3.7.

Frequently asked questions

What is CVE-2026-6367?: Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Drupal core allows Cross-Site Scripting (XSS). This issue affects Drupal core: from 11.3.0 before 11.3.7.
How severe is CVE-2026-6367?: CVE-2026-6367 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-6367 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-6367?: CVE-2026-6367 affects Drupal. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-6367?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-6367 have an EU (EUVD) identifier?: Yes. CVE-2026-6367 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31002.
When was CVE-2026-6367 published?: CVE-2026-6367 was published on 2026-05-19 and last updated on 2026-06-17.

References

https://www.drupal.org/sa-core-2026-003

Affected products (1)

cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*

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