CVE-2025-43761Network attack vector

Unauthenticated script execution via legacy CKEditor sample

Published Aug 22, 2025 · Updated Aug 22, 2025

Reflected XSS in affected Liferay Portal and DXP releases allows remote attackers to execute JavaScript through a legacy CKEditor sample page. The ajax.html endpoint under frontend-editor-ckeditor-web/ckeditor/samples/old returns attacker-controlled input without neutralizing executable markup. No authentication is required, and successful injection runs with the Liferay origin privileges available to the requesting browser context.

CVSS severity6.9
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in affected Liferay Portal and DXP releases allows remote attackers to execute JavaScript through a legacy CKEditor sample page. The ajax.html endpoint under frontend-editor-ckeditor-web/ckeditor/samples/old returns attacker-controlled input without neutralizing executable markup. No authentication is required, and successful injection runs with the Liferay origin privileges available to the requesting browser context.

The record

CVE
CVE-2025-43761
Published
Aug 22, 2025
Updated
Aug 22, 2025
Vendor
Liferay
Product
Liferay Portal
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 22, 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=7.4.0 <=7.4.3.131

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Liferay · Liferay Portalversion=7.4.0 <=7.4.3.131
Liferay · Liferay DXPversion=2024.Q1.1 <=2024.Q1.12; version=2024.Q2.0 <=2023.Q2.13; version=2024.Q3.1 <=2024.Q3.13; version=2024.Q4.0 <=2024.Q4.4; version=7.4.13 <=7.4.13-u92

Published CVSS scores

6.9LiferayCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA: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')
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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