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CVE-2026-77850: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in ash-project ash_admin

0
High
VulnerabilityCVE-2026-77850cvecve-2026-77850cwe-79
Published: 08/31/2026 (08/31/2026, 02:23:54 UTC)
Source: CVE Database V5
Vendor/Project: ash-project
Product: ash_admin

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.

CVSS v4.0

Score 8.4high

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
Active
Vuln. Confidentiality
High
Vuln. Integrity
High
Vuln. Availability
None
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
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

Affected software

ash_admin
pkg:hex/ash_admin
Affected versions
>=0.13.0 <1.3.1
GitHub Actionsmore threats →cve
ash-project/ash_admin
pkg:github/ash-project/ash_admin
CPE configurations
cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:*

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Technical Details

Data Version
5.2
Assigner Short Name
EEF
Date Reserved
2026-08-31T00:45:02.443Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a94e8f4acd9273b496aa891

Added to database: 08/31/2026, 02:37:40 UTC

Last updated: 08/31/2026, 03:22:04 UTC

Views: 6

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