CVE-2024-27270Network attack vector

Cross-site scripting via unneutralized crafted URI

Published Mar 27, 2024 · Updated Aug 2, 2024

Cross-site scripting in IBM WebSphere Application Server Liberty 23.0.0.3 through 24.0.0.3 allows remote attackers to inject JavaScript. With servlet-6.0 enabled, the affected URI handling embeds attacker-controlled JavaScript in a response without neutralizing it; IBM has not disclosed the specific code locus. Exploitation requires a victim to follow the crafted URI, after which the script runs in the victim's browser and can read or alter data available to that session.

CVSS severity4.7
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in IBM WebSphere Application Server Liberty 23.0.0.3 through 24.0.0.3 allows remote attackers to inject JavaScript. With servlet-6.0 enabled, the affected URI handling embeds attacker-controlled JavaScript in a response without neutralizing it; IBM has not disclosed the specific code locus. Exploitation requires a victim to follow the crafted URI, after which the script runs in the victim's browser and can read or alter data available to that session.

The record

CVE
CVE-2024-27270
Published
Mar 27, 2024
Updated
Aug 2, 2024
Vendor
IBM
Product
IBM WebSphere Application Server Liberty
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 27, 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=23.0.0.3 <=24.0.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM WebSphere Application Server Libertyversion=23.0.0.3 <=24.0.0.3

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.7IBM CorporationCVSS:3.0/AV:N/AC:H/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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