CVE-2023-37940Network attack vector

Stored XSS via unsanitized Service Class value

Published Dec 17, 2024 · Updated Dec 17, 2024

Stored XSS in Liferay Portal 7.0.0 through 7.4.3.87 and affected Liferay DXP releases allows remote attackers to inject script. The edit Service Access Policy page accepts a crafted Service Class value without neutralizing it before browser rendering. Exploitation requires high-privileged policy-edit access and user interaction to load the stored payload, enabling script execution in the victim's browser.

CVSS severity4.8
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Liferay Portal 7.0.0 through 7.4.3.87 and affected Liferay DXP releases allows remote attackers to inject script. The edit Service Access Policy page accepts a crafted Service Class value without neutralizing it before browser rendering. Exploitation requires high-privileged policy-edit access and user interaction to load the stored payload, enabling script execution in the victim's browser.

The record

CVE
CVE-2023-37940
Published
Dec 17, 2024
Updated
Dec 17, 2024
Vendor
Liferay
Product
Liferay Portal
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 17, 2024Record 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=7.0.0 <=7.4.3.87

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Liferay · Liferay Portalversion=7.0.0 <=7.4.3.87
Liferay · Liferay DXPversion=7.0.10 <=de-102; version=7.1.10 <=dxp-28; version=7.2.10 <=dxp-20; version=7.3.10 <=7.3.10-u29; version=7.4.13 <=7.4.13-u87

Published CVSS scores

4.8Liferay Inc.CVSS:3.1/AV:N/AC:L/PR:H/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')
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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