CVE-2025-13082Network attack vector

Transient defacement via crafted URLs

Published Nov 18, 2025 · Updated Nov 18, 2025

UI misrepresentation in affected Drupal core releases allows remote attackers to display transient defacement via crafted URLs. Drupal has not published the affected code locus or the operation that misprocesses the crafted URL. A victim must visit the attacker-generated URL; the spoofed page is not stored, and normal site branding and content are absent.

CVSS severity4.3
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

UI misrepresentation in affected Drupal core releases allows remote attackers to display transient defacement via crafted URLs. Drupal has not published the affected code locus or the operation that misprocesses the crafted URL. A victim must visit the attacker-generated URL; the spoofed page is not stored, and normal site branding and content are absent.

The record

CVE
CVE-2025-13082
Published
Nov 18, 2025
Updated
Nov 18, 2025
Vendor
OAuth.js
Product
Drupal core
Classifications
CWE-451, CAPEC-148
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 18, 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=10.5.0 <10.5.6
  2. Affected versionversion=11.0.0 <11.1.9
  3. Affected versionversion=11.2.0 <11.2.8
  4. Affected versionversion=8.0.0 <10.4.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OAuth.js · Drupal coreversion=10.5.0 <10.5.6; version=11.0.0 <11.1.9; version=11.2.0 <11.2.8; version=8.0.0 <10.4.9

Published CVSS scores

4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-451User Interface (UI) Misrepresentation of Critical Information
CAPEC-148Content Spoofing

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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