CVE-2023-33940Network attack vector

Stored script execution via unneutralized IFrame URL

Published May 24, 2023 · Updated Oct 22, 2024

Stored XSS in Liferay Portal 7.4.0 through 7.4.3.30 and DXP 7.4.13 through 7.4.13.u30 allows remote authenticated users to run browser script. Published records identify the stored IFrame Remote App URL as the injection point but disclose no responsible function or encoding failure. High-privilege access is required to configure the Remote App, and a victim must view the affected page before script executes in the portal origin.

CVSS severity4.8
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

Stored XSS in Liferay Portal 7.4.0 through 7.4.3.30 and DXP 7.4.13 through 7.4.13.u30 allows remote authenticated users to run browser script. Published records identify the stored IFrame Remote App URL as the injection point but disclose no responsible function or encoding failure. High-privilege access is required to configure the Remote App, and a victim must view the affected page before script executes in the portal origin.

The record

CVE
CVE-2023-33940
Published
May 24, 2023
Updated
Oct 22, 2024
Vendor
Liferay
Product
Liferay Portal
Classifications
CWE-79, T1203
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 22, 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=7.4.0 <=7.4.3.30

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Liferay · Liferay Portalversion=7.4.0 <=7.4.3.30
Liferay · Liferay DXPversion=7.4.13 <=7.4.13.u30

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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
Privilegesadmin
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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