CVE-2026-91928

EUVD-2026-85179
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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 47.59%
Affected Products (NVD)
VendorProductVersion
apachesling_xss_protection_api
𝑥
< 2.4.12
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://lists.apache.org/thread/yfb1q6zob8mth5lr4jnsy3lhx9rfwb02
http://www.openwall.com/lists/oss-security/2026/09/23/13