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.

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History

Mon, 31 Aug 2026 02:45:00 +0000

Type Values Removed Values Added
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.
Title Stored XSS in AshAdmin relationship typeahead via unescaped label_field content
First Time appeared Ash-project
Ash-project ash Admin
Weaknesses CWE-79
CPEs cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:*
Vendors & Products Ash-project
Ash-project ash Admin
References
Metrics cvssV4_0

{'score': 8.4, 'vector': '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'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: EEF

Published:

Updated: 2026-08-31T02:23:54.129Z

Reserved: 2026-08-31T00:45:02.443Z

Link: CVE-2026-77850

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-31T03:16:42.307

Modified: 2026-08-31T03:16:42.307

Link: CVE-2026-77850

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-31T03:30:05Z

Weaknesses