CVE-2022-25276Network attack vector

Cross-site scripting via unchecked oEmbed iframe domain

Published Apr 26, 2023 · Updated Feb 3, 2025

Cross-site scripting in Drupal core 9.3.0 through 9.3.18 and 9.4.0 through 9.4.2 allows remote attackers to read cookies via oEmbed. The Media oEmbed iframe route fails to validate the configured iframe domain, allowing third-party embed content to render in the primary site's context. Exploitation requires Media oEmbed use and user interaction with attacker-influenced embedded content; the reported consequences are script execution and browser-data exposure.

CVSS severity6.1
Medium
EPSS probability0.53%
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 core 9.3.0 through 9.3.18 and 9.4.0 through 9.4.2 allows remote attackers to read cookies via oEmbed. The Media oEmbed iframe route fails to validate the configured iframe domain, allowing third-party embed content to render in the primary site's context. Exploitation requires Media oEmbed use and user interaction with attacker-influenced embedded content; the reported consequences are script execution and browser-data exposure.

The record

CVE
CVE-2022-25276
Published
Apr 26, 2023
Updated
Feb 3, 2025
Vendor
OAuth.js
Product
Drupal core
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 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=9.3 <9.3.19
  2. Affected versionversion=9.4 <9.4.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OAuth.js · Drupal coreversion=9.3 <9.3.19; version=9.4 <9.4.3

Published CVSS scores

6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1NISTCVSS: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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