CVE-2025-5682Network attack vector

Stored XSS via unsanitized HTML attributes

Published Jun 26, 2025 · Updated Jun 26, 2025

Stored XSS in Drupal Klaro Cookie & Consent Management before 3.0.7 allows remote authenticated users to run script via crafted HTML. Its markup rewriting path returns certain attacker-supplied HTML attributes without sufficient sanitization, leaving script-capable attributes in rendered pages. The attacker needs a role permitted to enter HTML tags with the affected attributes; viewing stored content then executes code in a visitor's browser.

CVSS severity4.3
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

Stored XSS in Drupal Klaro Cookie & Consent Management before 3.0.7 allows remote authenticated users to run script via crafted HTML. Its markup rewriting path returns certain attacker-supplied HTML attributes without sufficient sanitization, leaving script-capable attributes in rendered pages. The attacker needs a role permitted to enter HTML tags with the affected attributes; viewing stored content then executes code in a visitor's browser.

The record

CVE
CVE-2025-5682
Published
Jun 26, 2025
Updated
Jun 26, 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. Jun 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 26, 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 <3.0.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OAuth.js · Klaro Cookie & Consent Managementversion=0.0.0 <3.0.7

Published CVSS scores

4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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)
T1059.007JavaScript/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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