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CVE-2026-54717— Silverstripe: XSS in breadcrumbs in page list view

Quick assessment

Affected
silverstripe silverstripe-cms
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.

SilverStripe CMS是SilverStripe公司的一款内容管理系统。 SilverStripe CMS 6.2.1之前版本存在跨站脚本漏洞，该漏洞源于页面标题在渲染到面包屑路径时未进行转义，可能导致跨站脚本攻击。

CVSS 5.4 · Medium EPSS 0.34% · P25

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

Affected Version Matrix 1

VendorProduct Version RangeStatus
silverstripe silverstripe-cms < 6.2.1 affected
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I. Basic Information for CVE-2026-54717

Vulnerability Information
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Vulnerability Title
Silverstripe: XSS in breadcrumbs in page list view
Source: CVE Program / CVE List V5
Vulnerability Description
Silverstripe CMS is an open source content management system. Prior to 6.2.1, page breadcrumbs in the CMS are vulnerable to cross-site scripting when viewed using the page list view, because page titles are rendered into the breadcrumb trail without being escaped. This issue is fixed in 6.2.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
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
SilverStripe CMS 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SilverStripe CMS是SilverStripe公司的一款内容管理系统。 SilverStripe CMS 6.2.1之前版本存在跨站脚本漏洞，该漏洞源于页面标题在渲染到面包屑路径时未进行转义，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
silverstripe silverstripe-cms < 6.2.1 -

II. Public POCs for CVE-2026-54717

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III. Intelligence Information for CVE-2026-54717

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Patches & Fixes for CVE-2026-54717 (2)

Vendor Advisories for CVE-2026-54717 (1)

Vendor Pages for CVE-2026-54717 (1)

IV. Related Vulnerabilities

Same vendor: silverstripe
Same weakness: CWE-79

V. Comments for CVE-2026-54717

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