CVE-2024-26266Network attack vector

Stored script execution via unsanitized creator names

Published Feb 21, 2024 · Updated Aug 2, 2024

Stored XSS in affected Liferay Portal and DXP releases allows remote authenticated users to inject script through creator-name fields. Announcements and Alerts render the creating user's crafted first, middle, or last name without neutralizing embedded HTML or script. A signed-in account can store the payload, but a different user must view the resulting announcement or alert for script execution in that user's browser.

CVSS severity9.0
Critical
EPSS probability0.56%
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 affected Liferay Portal and DXP releases allows remote authenticated users to inject script through creator-name fields. Announcements and Alerts render the creating user's crafted first, middle, or last name without neutralizing embedded HTML or script. A signed-in account can store the payload, but a different user must view the resulting announcement or alert for script execution in that user's browser.

The record

CVE
CVE-2024-26266
Published
Feb 21, 2024
Updated
Aug 2, 2024
Vendor
Liferay
Product
Liferay Portal
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=7.2.0 <=7.4.3.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Liferay · Liferay Portalversion=7.2.0 <=7.4.3.13
Liferay · Liferay DXPversion=7.2.10 <=7.2.10-dxp-16; version=7.3.10 <=7.3.10-dxp-3; version=7.4.13 <=7.4.13.u9

Published CVSS scores

9.0Liferay Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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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