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CVE-2026-53529— LeafWiki vulnerable to stored XSS via search-result title (highlight() returns raw title into dangerouslySetInnerHTML)

Quick assessment

Affected
perber leafwiki
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.

LeafWiki 是一款自托管维基软件。在版本 0.10.2 之前，搜索 API 返回的页面标题可以在前端被渲染为原始 HTML。具有编辑器或管理员权限的用户可以创建或修改包含 HTML/JavaScript 恶意载荷的页面标题。当其他用户搜索匹配项时，该恶意载荷可能在受害者浏览器中执行。具体影响取决于部署配置：如果启用了 参数，未认证访问者可能受到波及；在仅限认证用户的部署环境中，此漏洞可用于对已登录并能查看搜索结果的用户进行跨用户型跨站脚本攻击（XSS）。该问题已在 0.10.2 版本中修复，修复方式确保搜索结

CVSS 4.8 · Medium EPSS 0.24% · P16

Affected Version Matrix 1

VendorProduct Version RangeStatus
perber leafwiki < 0.10.2 affected
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I. Basic Information for CVE-2026-53529

Vulnerability Information
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Vulnerability Title
LeafWiki vulnerable to stored XSS via search-result title (highlight() returns raw title into dangerouslySetInnerHTML)
Source: CVE Program / CVE List V5
Vulnerability Description
LeafWiki is a self-hosted wiki. Prior to version 0.10.2, page titles returned by the search API could be rendered as raw HTML in the frontend. A user with editor or administrator permissions could create or modify a page title containing an HTML/JavaScript payload. When another user searched for a matching term, the payload could execute in the victim’s browser. The impact depends on deployment configuration. With `--public-access` enabled, unauthenticated visitors could be affected. In authenticated-only deployments, the issue could be used for cross-user XSS against logged-in users who can access search results. The issue has been fixed in version 0.10.2 by ensuring that author-controlled page titles in search results are not interpreted as raw HTML by the browser while preserving search result highlighting.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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

Affected Products

Vendor Product Affected Versions CPE Subscribe
perber leafwiki < 0.10.2 -

II. Public POCs for CVE-2026-53529

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III. Intelligence Information for CVE-2026-53529

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Vendor Advisories for CVE-2026-53529 (1)

Same Patch Batch · perber · 2026-08-21 · 3 CVEs total

CVE-2026-53527 8.8 HIGH LeafWiki Vulnerable to Privilege Escalation via User Self-Service Update
CVE-2026-53528 8.8 HIGH FileWiki has path traversal in RenameAsset via unsanitized oldFilename parameter

IV. Related Vulnerabilities

Same product: leafwiki
Same vendor: perber
Same weakness: CWE-79

V. Comments for CVE-2026-53529

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