CVE-2026-76985— Apache Wicket: XSS in Palette via getAdditionalAttributes
Quick assessment
Affected
Apache Software Foundation Apache Wicket
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Apache Wicket是美国Apache基金会的一款Java Web应用开发框架。 Apache Wicket 8.0.0版本至8.18.0版本、9.0.0版本至9.23.0版本和10.0.0版本至10.10.0版本存在跨站脚本漏洞，该漏洞源于网页生成过程中输入中和不当，AbstractOptions组件将getAdditionalAttributes返回的属性名和值直接写入<option>标签，可能导致跨站脚本攻击。
Possible ATT&CK Techniques 1 AI
T1059.007 · JavaScriptAffected Version Matrix 3
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Apache Software Foundation | Apache Wicket | 8.0.0≤ 8.18.0 |
affected |
9.0.0≤ 9.23.0 |
affected | ||
10.0.0≤ 10.10.0 |
affected |
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I. Basic Information for CVE-2026-76985
Vulnerability Information
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Vulnerability Title
Apache Wicket: XSS in Palette via getAdditionalAttributes
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/U:Green
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Wicket 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Wicket是美国Apache基金会的一款Java Web应用开发框架。 Apache Wicket 8.0.0版本至8.18.0版本、9.0.0版本至9.23.0版本和10.0.0版本至10.10.0版本存在跨站脚本漏洞，该漏洞源于网页生成过程中输入中和不当，AbstractOptions组件将getAdditionalAttributes返回的属性名和值直接写入<option>标签，可能导致跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Apache Software Foundation | Apache Wicket | 8.0.0 ~ 8.18.0 | - |
|
II. Public POCs for CVE-2026-76985
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Mailing List Discussions for CVE-2026-76985 (1)
Same Patch Batch · Apache Software Foundation · 2026-08-31 · 10 CVEs total
| CVE-2026-58301 | 5.9 MEDIUM | Apache Shiro: Server-side POST request may be steered to an alternate host |
| CVE-2026-76983 | 5.1 MEDIUM | Apache Wicket: XSS in AutoLabelTextResolver via FormComponent.setLabel |
| CVE-2026-76984 | 5.1 MEDIUM | Apache Wicket: XSS in MetaDataHeaderItem via addTagAttribute |
| CVE-2026-76982 | 5.1 MEDIUM | Apache Wicket: XSS in Button via its model object |
| CVE-2026-75802 | 5.1 MEDIUM | Apache Wicket: XSS in AjaxEditableLabel and its subclasses via IChoiceRenderer and default |
| CVE-2026-76986 | Apache Wicket: XSS in AbstractSingleSelectChoice via getNullValidDisplayValue | |
| CVE-2026-71378 | Apache Wicket: Cross-Site Request Forgery (CSRF) protection bypass in ResourceIsolationReq | |
| CVE-2026-71257 | Apache Wicket: Configured file upload limits are not enforced when the multipart request h | |
| CVE-2026-70449 | Apache Wicket: Path traversal in resource style/variation/locale |
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