CVE-2026-91999 — Apache Sling XSS: Improper escaping in the XSS Webconsole plugin

CVE-2026-91999

Apache Sling XSS: Improper escaping in the XSS Webconsole plugin PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Sling XSS	affected 0 before 2.4.12

CWE

CWE-79

References

https://lists.apache.org/thread/xpcsdkr80ow9p13f7hp3ykrhzky9d4t4

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/09/23/14