CVE-2026-73192

Apache Sling XSS: XSS possible through XSSAPI.getValidHref()

State: Published
Severity: 6.1 Medium
Published: Sep 23, 2026
Updated: Sep 23, 2026
Reserved: Aug 11, 2026

Description

An improper neutralization of input during web page generation ('Cross-site Scripting') [CWE-79] vulnerability when using the XSSAPI.getValidHref() in Apache Sling XSS version 2.4.10 and prior may allow an attacker to perform a reflected cross-site scripting (XSS) attack in every feature using this method. In order to successfully attack an application, the attacker needs to be able to submit a value which is not correctly sanitized by that library.

Upgrade to Apache Sling XSS >= 2.4.12

Scores

CVSS	Score	Vector	Source
3.1	6.1 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	CISA-ADP

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
Apache Sling XSSApache Software Foundation	before 2.4.12Affected

References

https://sling.apache.org/news.htmlvendor-advisory
http://www.openwall.com/lists/oss-security/2026/09/23/18

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