CVE-2025-47704Network attack vector

Stored XSS via unsanitized data attributes

Published May 14, 2025 · Updated May 20, 2025

Stored cross-site scripting in Drupal Klaro Cookie & Consent Management before 3.0.5 allows remote authenticated users to execute script. The module's markup-processing path leaves attacker-controlled HTML data attributes insufficiently sanitized, and the security release removes unused data attributes. Exploitation requires a role permitted to enter HTML tags with the affected attributes; viewing the stored content executes script in another user's browser.

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 cross-site scripting in Drupal Klaro Cookie & Consent Management before 3.0.5 allows remote authenticated users to execute script. The module's markup-processing path leaves attacker-controlled HTML data attributes insufficiently sanitized, and the security release removes unused data attributes. Exploitation requires a role permitted to enter HTML tags with the affected attributes; viewing the stored content executes script in another user's browser.

The record

CVE
CVE-2025-47704
Published
May 14, 2025
Updated
May 20, 2025
Vendor
OAuth.js
Product
Klaro Cookie & Consent Management
Classifications
CWE-79, CAPEC-63, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 14, 2025CVE publishedPublication date reported by the CVE source.
  2. May 20, 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 <3.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OAuth.js · Klaro Cookie & Consent Managementversion=0.0.0 <3.0.5

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
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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