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CVE-2026-75802— Apache Wicket: XSS in AjaxEditableLabel and its subclasses via IChoiceRenderer and defaultNullLabel

一分钟漏洞结论

影响对象
Apache Software Foundation Apache Wicket
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

AjaxEditableChoiceLabel in wicket-extensions, when constructed with a non-null IChoiceRenderer, writes the display value obtained from that renderer into the label's markup without applying the HTML escaping Wicket performs by default for component model value

CVSS 5.1 · Medium
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一、 漏洞 CVE-2026-75802 基础信息

漏洞信息

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Vulnerability Title
Apache Wicket: XSS in AjaxEditableLabel and its subclasses via IChoiceRenderer and defaultNullLabel
来源: CVE Program / CVE List V5
Vulnerability Description
AjaxEditableChoiceLabel in wicket-extensions, when constructed with a non-null IChoiceRenderer, writes the display value obtained from that renderer into the label's markup without applying the HTML escaping Wicket performs by default for component model values. An attacker who can influence the choice or model data rendered by such a label can inject HTML or script that executes in the browser of any user who views the page. The same value is correctly escaped when the component's dropdown editor renders it as an option, so only the label rendering is affected. AjaxEditableLabel, AjaxEditableChoiceLabel and AjaxEditableMultiLineLabel write the value returned by the protected defaultNullLabel() method into the label's markup the same way when the component's model is empty, while the model value they show otherwise is escaped. The default implementation returns a constant, so an application is affected where it overrides that method and returns a value an attacker can influence. Neither value could be escaped by configuration, because escapeModelStrings had no effect on any of the three components: it is read by the label they render with rather than by the component itself, and nothing carried the setting across. 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 are also affected; the display value from the renderer since 6.22.0 and the null label since 1.4.0. Users are recommended to upgrade to version 8.19.0, 9.24.0 or 10.11.0, which fix the issue.
来源: 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:Amber
来源: 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)
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
Apache Software Foundation Apache Wicket 8.0.0 ~ 8.18.0 -

二、漏洞 CVE-2026-75802 的公开POC

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三、漏洞 CVE-2026-75802 的情报信息

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CVE-2026-75802 其他参考 (1)

同批安全公告 · Apache Software Foundation · 2026-08-31 · 共 8 条

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-2026-71378 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

IV. Related Vulnerabilities

Same product: Apache Wicket
Same vendor: Apache Software Foundation
Same weakness: CWE-79

V. Comments for CVE-2026-75802

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