CVE-2026-6365Network attack vector

Cross-site scripting via unsanitized modal options

Published May 19, 2026 · Updated May 19, 2026

Cross-site scripting in affected Drupal core releases allows remote attackers to execute script through AJAX modal dialog options. The jQuery integration for AJAX modal dialog boxes fails to sufficiently sanitize certain option values before client-side dialog rendering. Exploitation requires user interaction and can expose or alter data in the affected browser context, with no reported service interruption.

CVSS severity6.1
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in affected Drupal core releases allows remote attackers to execute script through AJAX modal dialog options. The jQuery integration for AJAX modal dialog boxes fails to sufficiently sanitize certain option values before client-side dialog rendering. Exploitation requires user interaction and can expose or alter data in the affected browser context, with no reported service interruption.

The record

CVE
CVE-2026-6365
Published
May 19, 2026
Updated
May 19, 2026
Vendor
Avatar Uploader Project
Product
Drupal core
Classifications
CWE-79, CAPEC-63, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 19, 2026CVE publishedPublication date reported by the CVE source.
  2. May 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.6.0 <10.6.7
  2. Affected versionversion=11.0.0 <11.2.11
  3. Affected versionversion=11.3.0 <11.3.7
  4. Affected versionversion=8.0.0 <10.5.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Avatar Uploader Project · Drupal coreversion=10.6.0 <10.6.7; version=11.0.0 <11.2.11; version=11.3.0 <11.3.7; version=8.0.0 <10.5.9

Published CVSS scores

6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-63Cross-Site Scripting (XSS)
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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