CVE-2026-73192: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Apache Software Foundation Apache Sling XSS
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
AI Analysis
Technical Summary
This vulnerability (CWE-79) in Apache Sling XSS versions before 2.4.12 involves improper input sanitization in the XSSAPI.getValidHref() function. This flaw allows attackers to inject malicious scripts via crafted input that is not correctly sanitized, leading to reflected cross-site scripting attacks in all features using this method. The vendor has addressed the issue in version 2.4.12 by improving input validation and neutralization.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary scripts in the context of the affected web application, potentially leading to session hijacking, defacement, or other malicious actions dependent on script execution. The vulnerability affects all features using the vulnerable method, increasing the attack surface. There are no known exploits in the wild at this time.
Mitigation Recommendations
Upgrade Apache Sling XSS to version 2.4.12 or later to remediate this vulnerability. No other mitigations are indicated by the vendor advisory.
CVE-2026-73192: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Apache Software Foundation Apache Sling XSS
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
CVSS v3.1
Score 6.1medium
Affected software
Apache Software Foundation
Apache Sling XSS
pkg:maven/org.apache.sling/org.apache.sling.xssRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-79) in Apache Sling XSS versions before 2.4.12 involves improper input sanitization in the XSSAPI.getValidHref() function. This flaw allows attackers to inject malicious scripts via crafted input that is not correctly sanitized, leading to reflected cross-site scripting attacks in all features using this method. The vendor has addressed the issue in version 2.4.12 by improving input validation and neutralization.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary scripts in the context of the affected web application, potentially leading to session hijacking, defacement, or other malicious actions dependent on script execution. The vulnerability affects all features using the vulnerable method, increasing the attack surface. There are no known exploits in the wild at this time.
Mitigation Recommendations
Upgrade Apache Sling XSS to version 2.4.12 or later to remediate this vulnerability. No other mitigations are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-08-11T11:21:29.423Z
- State
- PUBLISHED
Threat ID: 6ab39cddf7a7c541069439ec
Added to database: 09/23/2026, 09:33:17 UTC
Last enriched: 09/23/2026, 09:48:02 UTC
Last updated: 09/24/2026, 01:57:04 UTC
Views: 12
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.