CVE-2026-66390CWE-79cross-site-scripting

CVE-2026-66390

Medium · published July 27, 2026

CVSS v3.1
6.1
EPSS
1%
Percentile
46.6
In the wild
Unconfirmed
What it is

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Apache Wicket.

This issue affects Apache Wicket: from 9.0.0 through 9.23.0, from 10.0.0 through 10.9.0.

Users are recommended to upgrade to version 10.10.0, which fixes the issue.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00573 · 46.6th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-07-27T21:16Z
Affected products (2)
ProductVersionsFixed in
apache/wicket≥ 9.0.0, ≤ 9.23.0—
apache/wicket≥ 10.0.0, < 10.10.010.10.0
References (2)
https://lists.apache.org/thread/67814fo0zocv3161bk1cr0ypvrkxky43 · [email protected]http://www.openwall.com/lists/oss-security/2026/07/27/4 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 27 JUL 16:39Z
    Apache Wicket: crafted Link URL strings can break out of the JavaScript sequence
    cvelistv5