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CVE-2026-77850— Stored XSS in AshAdmin relationship typeahead via unescaped label_field content

Quick assessment

Affected
ash-project ash_admin
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.

以下是该漏洞描述信息的中文翻译： 漏洞描述： ash-project 的 ash_admin 中存在一个存储型跨站脚本（Stored Cross-Site Scripting, XSS）漏洞。攻击者提供的记录内容会以脚本的形式在管理员的浏览器中执行。 详细说明： 和 这两个关系型自动补全（typeahead）组件会将匹配的搜索词用 标签进行高亮，并调用 渲染整个字符串。被高亮的值是目标记录的 字段，而该字段通常是普通数据库内容，往往由权限较低的用户写入。由于 会对整个字符串禁用输出转义，类似 这样的存储型 labe

CVSS 8.4 · High
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I. Basic Information for CVE-2026-77850

Vulnerability Information
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Vulnerability Title
Stored XSS in AshAdmin relationship typeahead via unescaped label_field content
Source: CVE Program / CVE List V5
Vulnerability Description
Stored Cross-site Scripting vulnerability in ash-project ash_admin executes attacker-supplied record content as script in an administrator's browser. The relationship typeahead components AshAdmin.Components.Resource.RelationshipField and AshAdmin.Components.Resource.ManagedRelationshipSelectField highlight the matched search term by wrapping it in <b> tags and rendering the whole string with Phoenix.HTML.raw/1. The highlighted value is the destination record's label_field, ordinary database content that is often written by lower-privileged users. Because raw/1 disables output escaping for the entire string, a stored label such as <img src=x onerror=...> runs as JavaScript in the admin's session as soon as a matching record appears in the dropdown, giving the attacker the admin's privileges over everything AshAdmin exposes. The fix HTML-escapes the label before inserting the highlight markup. This issue affects ash_admin: from 0.13.0 before 1.3.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/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
ash-project ash_admin 0.13.0 ~ 1.3.1 cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:*
ash-project ash_admin eb940f4d7d857ca49368ae847f586d01c6f5ad35 ~ 07289191ccdac27dd70ab7c6413ed057bc7fdade cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-77850

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III. Intelligence Information for CVE-2026-77850

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Other References for CVE-2026-77850 (4)

Same Patch Batch · ash-project · 2026-08-31 · 13 CVEs total

CVE-2026-77956 10.0 CRITICAL EEx template evaluation of prompt content in AshAi enables remote code execution
CVE-2026-82673 8.3 HIGH Path traversal in AshAdmin file uploads via unsanitized client filename
CVE-2026-82722 8.3 HIGH AshAdmin LiveView events intern atoms from client input, exhausting the atom table (node D
CVE-2026-75757 8.3 HIGH AshAdmin cookie reader matches names by substring, enabling actor/session shadowing from a
CVE-2026-81315 7.4 HIGH MCP DNS-rebinding origin check in AshAi is bypassed by a spoofed X-Forwarded-Proto header
CVE-2026-75760 7.1 HIGH AshAi vectorize change leaks raw embedding-provider errors, including credentials, in a us
CVE-2026-82564 7.1 HIGH Identity tool filter in AshAi accepts operator maps, allowing update or destroy of unident
CVE-2026-82579 6.0 MEDIUM AshAi tool loop never terminates when all tool calls are filtered out, enabling denial of
CVE-2026-82580 5.3 MEDIUM AshAi echoes raw tool exception messages into the conversation, disclosing internal detail
CVE-2026-81853 2.3 LOW AshAdmin composite primary key decoding accepts arbitrary fields, enabling a secret-attrib
CVE-2026-81852 2.1 LOW AshAdmin ships a hardcoded CSP nonce, allowing nonce-based CSP bypass
CVE-2026-82681 2.0 LOW Query-parameter injection in AshAdmin row-action links via unencoded string primary keys

IV. Related Vulnerabilities

Same product: ash_admin
Same vendor: ash-project
Same weakness: CWE-79

V. Comments for CVE-2026-77850

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