CVE-2025-48923Network attack vector

Persistent XSS via unsanitized data attributes

Published Jun 26, 2025 · Updated Jun 26, 2025

Persistent XSS in Drupal Toc.js before 3.2.1 allows remote authenticated users to execute JavaScript through crafted data attributes. The module insufficiently sanitizes data attributes in permitted HTML before client-side table-of-contents generation processes them. Exploitation requires a role allowed to enter HTML tags with the relevant attributes through another module, and injected script persists for visitors.

CVSS severity6.1
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Persistent XSS in Drupal Toc.js before 3.2.1 allows remote authenticated users to execute JavaScript through crafted data attributes. The module insufficiently sanitizes data attributes in permitted HTML before client-side table-of-contents generation processes them. Exploitation requires a role allowed to enter HTML tags with the relevant attributes through another module, and injected script persists for visitors.

The record

CVE
CVE-2025-48923
Published
Jun 26, 2025
Updated
Jun 26, 2025
Vendor
OAuth.js
Product
Toc.js
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 <3.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OAuth.js · Toc.jsversion=0.0.0 <3.2.1

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
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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