CVE-2026-76985

Improper neutralization of input during web page generation in Apache Wicket. org.apache.wicket.extensions.markup.html.form.palette.component.AbstractOptions, which renders the two option lists of a Palette, escapes the id and the display value of each option according to the escape-model-strings setting, and wrote the attribute names and values returned by getAdditionalAttributes into the <option> tag as they came. An application is affected where it overrides Palette.getAdditionalAttributesForChoices, Palette.getAdditionalAttributesForSelection or AbstractOptions.getAdditionalAttributes and returns a value holding data an attacker can influence. These methods return null by default, so an application that does not override them is not affected. As a workaround, escape the values in the override. This issue affects Apache Wicket: from 8.0.0 through 8.18.0, from 9.0.0 through 9.23.0, from 10.0.0 through 10.10.0. Older, unsupported releases from 1.4.0 onwards are also affected. Users are recommended to upgrade to version 8.19.0, 9.24.0 or 10.11.0, which fix the issue.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://lists.apache.org/thread/0x2x12x22ff4yq4rhqokb2fjhtsd0f0j	Vendor Advisory Mailing List
http://www.openwall.com/lists/oss-security/2026/08/31/5	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:apache:wicket::::::::
	cpe:2.3:a:apache:wicket::::::::
	cpe:2.3:a:apache:wicket::::::::

History

No history.

Information

Published : 2026-08-31 14:17

Updated : 2026-09-01 18:07

NVD link : CVE-2026-76985

Mitre link : CVE-2026-76985

CVE.ORG link : CVE-2026-76985

JSON object : View

Products Affected

apache

wicket

CWE

CWE-79

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

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