CVE-2026-91928
Received Received - Intake

Cross-Site Scripting in Apache Sling XSS

Publication date: 2026-09-23

Last updated on: 2026-09-23

Assigner: Apache Software Foundation

Description
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling XSS. This issue affects Apache Sling XSS: before 2.4.12. Users are recommended to upgrade to version 2.4.12, which fixes the issue.

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Meta Information

Published
2026-09-23
Last Modified
2026-09-23
Generated
2026-09-23
AI Q&A
2026-09-23
EPSS Evaluated
N/A
NVD
CVE-2026-91928
EUVD
EUVD-2026-85179

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
apache sling_xss to 2.4.12 (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. It occurs when user input is not properly neutralized during web page generation, allowing attackers to inject malicious scripts into web pages viewed by other users.

Impact Analysis

An attacker could exploit this to steal user sessions, deface websites, or deliver malware to users. It may lead to unauthorized data access or actions on behalf of users if they interact with the compromised page.

Compliance Impact

This vulnerability could violate GDPR by exposing user data or enabling unauthorized processing. For HIPAA, it may risk protected health information integrity or confidentiality if exploited in healthcare systems.

Mitigation Strategies

Upgrade Apache Sling XSS to version 2.4.12 or later to address the cross-site scripting vulnerability.

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