CVE-2025-3900Network attack vector

Stored cross-site scripting via unsanitized data attributes

Published Apr 23, 2025 · Updated Apr 25, 2025

Cross-site scripting in Drupal Colorbox before 2.1.3 allows remote authenticated users to execute script via crafted data attributes. The module passes insufficiently sanitized HTML data attributes into Colorbox when opening a modal, allowing browser interpretation of attacker-controlled script. Exploitation requires a role permitted to enter HTML tags with the relevant data attributes and a victim to open the resulting modal.

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 Drupal Colorbox before 2.1.3 allows remote authenticated users to execute script via crafted data attributes. The module passes insufficiently sanitized HTML data attributes into Colorbox when opening a modal, allowing browser interpretation of attacker-controlled script. Exploitation requires a role permitted to enter HTML tags with the relevant data attributes and a victim to open the resulting modal.

The record

CVE
CVE-2025-3900
Published
Apr 23, 2025
Updated
Apr 25, 2025
Vendor
OAuth.js
Product
Colorbox
Classifications
CWE-79, CAPEC-63, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 25, 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 <2.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OAuth.js · Colorboxversion=0.0.0 <2.1.3

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)
T1189Drive-by Compromise

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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