CVE-2026-123765
Received Received - Intake

Cross-Site Scripting in Apache Sling XSS

Publication date: 2026-11-12

Last updated on: 2026-11-12

Assigner: Apache Software Foundation

Description
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling XSS. xssAPI.getStyleToken() accepts markup in unquoted urls. This issue affects Apache Sling XSS: before 2.4.14. Users are recommended to upgrade to version 2.4.14, which fixes the issue.

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Meta Information

Published
2026-11-12
Last Modified
2026-11-12
Generated
2026-11-12
AI Q&A
2026-11-12
EPSS Evaluated
N/A
NVD
CVE-2026-123765
EUVD
EUVD-2026-124338

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Apache Software Foundation Apache Sling XSS From 0 (inc) to 2.4.14 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This is a cross-site scripting (XSS) vulnerability in Apache Sling XSS where the xssAPI.getStyleToken() function improperly handles markup in unquoted URLs, allowing malicious input to be executed in web pages.

Detection Guidance

This vulnerability can be detected by checking the version of Apache Sling XSS. If the version is before 2.4.14, the system is vulnerable. No specific commands are provided in the context.

Impact Analysis

An attacker could exploit this to inject malicious scripts into web pages, potentially stealing user data, session cookies, or performing actions on behalf of users without their consent.

Compliance Impact

This vulnerability could lead to data breaches, violating GDPR (data protection) and HIPAA (health information privacy) by exposing sensitive user data through XSS attacks.

Mitigation Strategies

Upgrade Apache Sling XSS to version 2.4.14 or later to fix the vulnerability.

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