← Vulnerability feed

Vulnerability record · CVE-2026-66390 · published 27 July 2026

CVE-2026-66390: Apache wicket cross-site scripting vulnerability

Apache · Wicket

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.

6.1 CVSS 3.1 Medium EPSS 0.57% · top 54.8% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score
0.57%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
5 Aug 2026Last modified by NVD

Description

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread/67814fo0zocv3161bk1cr0ypvrkxky43 Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/07/27/4 Mailing ListThird Party Advisory

Track CVE-2026-66390 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-36522Apache wicket injection vulnerabilityThe default configuration of XSLTResourceStream.java is vulnerable to remote code execution via XSLT injection when processing input from an untruste…EPSS 2.1%9.1CVE-2026-40010Apache wicket vulnerabilityMissing invocation of Servlet http web request method changeSessionId after session binding can be exploited for a session fixation attack in Apache …EPSS 0.62%9.1CVE-2016-6793Apache wicket deserialization of untrusted data vulnerabilityThe DiskFileItem class in Apache Wicket 6.x before 6.25.0 and 1.5.x before 1.5.17 allows remote attackers to cause a denial of service (infinite loop…EPSS 8.5%8.8CVE-2016-6806Apache wicket cross-site request forgery vulnerabilityApache Wicket 6.x before 6.25.0, 7.x before 7.5.0, and 8.0.0-M1 provide a CSRF prevention measure that fails to discover some cross origin requests. …EPSS 0.82%7.5CVE-2026-71257Apache wicket allocation without limits vulnerabilityApache Wicket enforces the upload limits configured on a form or upload field while parsing a multipart request with Apache Commons FileUpload. If th…EPSS 0.74%7.5CVE-2026-43646Apache wicket information exposure vulnerabilityExposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Wicket. This issue affects Apache Wicket: from 8.0.0 through 8.17.…EPSS 0.62%7.5CVE-2021-23937Apache wicket information exposure vulnerabilityA DNS proxy and possible amplification attack vulnerability in WebClientInfo of Apache Wicket allows an attacker to trigger arbitrary DNS lookups fro…EPSS 4.3%7.5CVE-2020-11976Apache fortress vulnerabilityBy crafting a special URL it is possible to make Wicket deliver unprocessed HTML templates. This would allow an attacker to see possibly sensitive in…EPSS 3.8%

Source: NIST National Vulnerability Database (record CVE-2026-66390), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.