CVE-2025-8362Network attack vector

Stored XSS via unsanitized container ID

Published Aug 15, 2025 · Updated Aug 15, 2025

Stored XSS in Drupal GoogleTag Manager before 1.10.0 allows remote authenticated users to execute script in site visitors' browsers. The GTM-ID configuration field insufficiently sanitizes input and inserts the saved value directly into a script tag. The attacker needs the Administer gtm permission, and the 20-character field limit constrains the payload while permitting browser-side code execution.

CVSS severity6.1
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Drupal GoogleTag Manager before 1.10.0 allows remote authenticated users to execute script in site visitors' browsers. The GTM-ID configuration field insufficiently sanitizes input and inserts the saved value directly into a script tag. The attacker needs the Administer gtm permission, and the 20-character field limit constrains the payload while permitting browser-side code execution.

The record

CVE
CVE-2025-8362
Published
Aug 15, 2025
Updated
Aug 15, 2025
Vendor
OAuth.js
Product
GoogleTag Manager
Classifications
CWE-79, CAPEC-63, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 2025Record 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=0.0.0 <1.10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

OAuth.js · GoogleTag Managerversion=0.0.0 <1.10.0

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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