CVE-2026-91928

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.

CVSS 3.1

6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

0.6% chance of exploitation in the next 30 days; higher than 47% of CVEs (scores of 2026-10-25)

CWE

CWE-79

Published

2026-09-23

Modified

2026-09-30

Record from

the NVD, synced 2026-10-19

Affected

• apache:sling_xss_protection_api

References

• https://lists.apache.org/thread/yfb1q6zob8mth5lr4jnsy3lhx9rfwb02
• http://www.openwall.com/lists/oss-security/2026/09/23/13

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