CVE-2025-43815Network attack vector

Reflected XSS via unescaped backURLTitle

Published Sep 29, 2025 · Updated Sep 30, 2025

Reflected XSS in Liferay Portal and DXP page administration allows remote attackers to execute script in a user's browser through a backURLTitle value. PortletBackLinkProductNavigationControlMenuEntry.getLabel formats the attacker-controlled backURLTitle into the go-to-x label without HTML escaping. Exploitation requires a user to open the crafted page-configuration URL; the resulting script runs in that user's Liferay origin and can read or modify browser-accessible data.

CVSS severity5.1
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

Reflected XSS in Liferay Portal and DXP page administration allows remote attackers to execute script in a user's browser through a backURLTitle value. PortletBackLinkProductNavigationControlMenuEntry.getLabel formats the attacker-controlled backURLTitle into the go-to-x label without HTML escaping. Exploitation requires a user to open the crafted page-configuration URL; the resulting script runs in that user's Liferay origin and can read or modify browser-accessible data.

The record

CVE
CVE-2025-43815
Published
Sep 29, 2025
Updated
Sep 30, 2025
Vendor
Liferay
Product
Liferay Portal
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 30, 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=7.4.3.102 <=7.4.3.110

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Liferay · Liferay Portalversion=7.4.3.102 <=7.4.3.110
Liferay · Liferay DXPversion=2023.Q3.5 <=2023.Q3.6; version=2023.Q4.0 <=2023.Q4.2

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.1Liferay Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA: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
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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