Vulnerability · Published Sep 23, 2026 · Assigned by apache

CVE-2026-73192Apache Sling XSS: XSS possible through XSSAPI.getValidHref()

Medium 6.1

In plain English

A medium-severity cross-site scripting in Apache Sling XSS from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.6%top 52.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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

Affected products (as reported)

Vendor	Product	Versions
Apache Software Foundation	Apache Sling XSS	0 – before 2.4.12

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

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