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CVE-2026-103863

CVSS
— unscored
CISA KEV
Not listed
Technical details
Weakness
CWE-79, CWE-693
EPSS · 05 Nov 2026
Unavailable
Public resources
None found

No VulnCrest analysis published for this CVE yet. Below is the original CNA/NVD description, unmodified.

Description

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling Engine. Content-Type, charset, and redirect changes from an included component evade the  protectheaders / checkcontenttype  enforcement through setHeader(), repeated calls to setContentType(), the charset APIs, Servlet 6.1 redirect overloads, and stale config - enabling stored XSS despite enabled protections. This issue affects Apache Sling Engine before 3.0.4. Users are recommended to upgrade to version 3.0.4, which fixes the issue.

Exploits & detection

No public PoC or detection template found yet.

Timeline

  • Published: 05 Nov 2026
  • Last modified upstream: 05 Nov 2026

Sources & licenses

CVE / CVSS / CWE
NVD record ↗ (unmodified). This product uses the NVD API but is not endorsed or certified by the NVD. CVE® © The MITRE Corporation.
Exploitation
CISA KEV (CC0) · EPSS by FIRST.org
References used for the analysis
Analysis, summary and remediation
© VulnCrest

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