How should we interpret CVSS severity scores?

CVSS estimates technical severity, but it does not automatically equal business risk. Prioritize using context like internet exposure, asset criticality, known exploitation, and whether compensating controls exist. A Medium CVSS on an exposed production system can be more urgent than a Critical on an isolated non-production host.

Vulnerability Database

Q: What is a Vulnerability (CVE) and why does it matter?

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

Q: What's the difference between a vulnerability, an exploit, and a zero-day?

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. Risk increases sharply when exploitation becomes reliable or widespread.

Q: Why do vulnerabilities keep reappearing in our environment?

Recurring findings usually come from incomplete asset discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host.

Q: How do we prioritize remediation without burning out the team?

Use a repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress so remediation is steady, not reactive.

Q: How can SynScan help reduce vulnerability risk over time?

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.

413,718

Total vulnerabilities in the database

CVE-2026-95863

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Improper neutralization of input during web page generation in Apache Wicket.

Apache Wicket generates JavaScript that refers to the elements it renders, and writes into that JavaScript two values it derives itself: a component's markup id, and the input name of a form component, which is built from component ids. Both are placed inside single-quoted JavaScript string literals without being escaped for that context, so a value containing a single quote or a backslash ends the literal, and what follows is parsed as script and runs in the application's origin when the page loads.

A markup id is the value passed to org.apache.wicket.Component#setMarkupId(String), or the id attribute written in the component's markup, or an id Wicket generates, in that order. The first two are supplied by the application in an HTML context, where both characters are legal and where Wicket escapes them correctly when it writes the same value into the id attribute of the element; a generated id cannot contain either. An input name is derived from the ids of the components between the form and the form component, and a component id was rejected only for ':' and '~'.

In org.apache.wicket:wicket-core on 9.x and 10.x, org.apache.wicket.markup.head.OnEventHeaderItem#forMarkupId(String, String, CharSequence) quotes the id it is given into a Wicket.Event.add call, and components in both wicket-core and wicket-extensions reach it through #forComponent(Component, String, CharSequence). On every affected version, org.apache.wicket.markup.html.form.Form writes its markup id and the id of its hidden-fields container into such literals, org.apache.wicket.markup.html.form.FormComponentUpdatingBehavior writes an input name, and org.apache.wicket.markup.html.form.upload.MultiFileUploadField writes two markup ids and an input name. On 8.x, Form also writes an input name into the action of a submitting link, and on 8.x and 9.x Form#appendDefaultButtonField writes an input name into a name attribute with no escaping at all, so a value containing a double quote escapes the attribute into markup.

org.apache.wicket:wicket-extensions is affected in its own right and not only through wicket-core: AjaxEditableLabel, AjaxIndicatorAppender, AjaxDisableComponentListener, UploadProgressBar, KittenCaptchaPanel, Palette, FilterForm and, on 9.x and 10.x, TrapFocusBehavior and AjaxListPanel each build their own JavaScript containing a markup id.

An application is affected where a markup id or a component id carries one of those characters. Wicket does not put one there itself, so the value comes from the application: an id set on a component, an id attribute in a template, or a component id derived from data. None of those is a JavaScript context from the application's point of view.

The Content-Security-Policy that Apache Wicket 9.x and 10.x send by default does not prevent this. The generated script is written into a script element carrying the per-response nonce, so the injected code is part of a script the policy admits.

The fixed versions check an id where it enters instead of escaping each place it is written. A component id and a markup id may no longer contain a quote, a backquote, a backslash, braces, angle brackets, a semicolon, an ampersand or a control character, and a markup id may not contain parentheses or square brackets either; a component constructed with such an id, or given such a markup id, fails with an exception.

This issue affects Apache Wicket: from 8.0.0 through 8.19.0, from 9.0.0 through 9.24.0, from 10.0.0 through 10.11.0. Users of Apache Wicket 7.x or older, which are no longer supported, should upgrade to a supported version. Users are recommended to upgrade to version 8.20.0, 9.25.0 or 10.12.0, which fix the issue.

Published: Nov 1, 2026
Updated: Nov 8, 2026
CVE: CVE-2026-95863
Severity: High
Exploit:
CISA KEV:

No technical information available.

CWEs:

CWE-79

OWASP TOP 10:

A7 - Cross-Site Scripting (XSS)

Affected Software
References

No affected software listed.

https://lists.apache.org/thread.html/5wg754b873tlnsc268myrwcoy9lt046v

Is CVE-2026-95863 exposed on your perimeter?

A vulnerability database tells you what is broken. Attack surface management tells you where it is running: it discovers your internet-facing assets and flags the ones affected by issues like this one.

What is attack surface management? →

Deep Security Visibility Without the Complexity

SynScan provides clear, real-time security insights so you can monitor your attack surface, spot risks early, and act fast—without extra complexity.

No setup fees
5-min deployment
Cancel anytime

Book a Demo

Frequently Asked Questions

What is a Vulnerability (CVE) and why does it matter?

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.