Drupal up to 11.3.6 cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in Drupal up to 11.3.6 and classified as problematic. Affected is an unknown function. This manipulation causes cross site scripting. The identification of this vulnerability is CVE-2026-6367. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Drupal up to 11.3.6. It has been declared as problematic. Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

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.

The weakness was shared by Dries Buytaert as sa-core-2026-003. It is possible to read the advisory at drupal.org. This vulnerability is known as CVE-2026-6367 since 04/15/2026. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 11.3.7 eliminates this vulnerability.

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Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 6.1
ADP CISA Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Drupal 11.3.7

Timelineinfo

04/15/2026 CVE reserved
05/20/2026 +35 days Advisory disclosed
05/20/2026 +0 days VulDB entry created
05/23/2026 +3 days VulDB entry last update

Sourcesinfo

Product: drupal.org

Advisory: sa-core-2026-003
Researcher: Dries Buytaert
Status: Confirmed

CVE: CVE-2026-6367 (🔒)
GCVE (CVE): GCVE-0-2026-6367
GCVE (VulDB): GCVE-100-364759

Entryinfo

Created: 05/20/2026 05:56
Updated: 05/23/2026 19:41
Changes: 05/20/2026 05:56 (56), 05/23/2026 19:41 (11)
Complete: 🔍
Cache ID: 216::103

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