{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-77850",
        "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "state": "PUBLISHED",
        "assignerShortName": "EEF",
        "dateReserved": "2026-08-31T00:45:02.443Z",
        "datePublished": "2026-08-31T02:23:54.129Z",
        "dateUpdated": "2026-08-31T02:23:54.129Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "collectionURL": "https://repo.hex.pm",
                    "cpes": [
                        "cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "'Elixir.AshAdmin.Components.Resource.RelationshipField'",
                        "'Elixir.AshAdmin.Components.Resource.ManagedRelationshipSelectField'"
                    ],
                    "packageName": "ash_admin",
                    "packageURL": "pkg:hex/ash_admin",
                    "product": "ash_admin",
                    "programFiles": [
                        "lib/ash_admin/components/resource/relationship_field.ex",
                        "lib/ash_admin/components/resource/managed_relationship_select_field.ex"
                    ],
                    "repo": "https://github.com/ash-project/ash_admin",
                    "vendor": "ash-project",
                    "versions": [
                        {
                            "lessThan": "1.3.1",
                            "status": "affected",
                            "version": "0.13.0",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "collectionURL": "https://github.com",
                    "cpes": [
                        "cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "'Elixir.AshAdmin.Components.Resource.RelationshipField'",
                        "'Elixir.AshAdmin.Components.Resource.ManagedRelationshipSelectField'"
                    ],
                    "packageName": "ash-project/ash_admin",
                    "packageURL": "pkg:github/ash-project/ash_admin",
                    "product": "ash_admin",
                    "programFiles": [
                        "lib/ash_admin/components/resource/relationship_field.ex",
                        "lib/ash_admin/components/resource/managed_relationship_select_field.ex"
                    ],
                    "repo": "https://github.com/ash-project/ash_admin",
                    "vendor": "ash-project",
                    "versions": [
                        {
                            "lessThan": "07289191ccdac27dd70ab7c6413ed057bc7fdade",
                            "status": "affected",
                            "version": "eb940f4d7d857ca49368ae847f586d01c6f5ad35",
                            "versionType": "git"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "cpeMatch": [
                                {
                                    "criteria": "cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "1.3.1",
                                    "versionStartIncluding": "0.13.0",
                                    "vulnerable": true
                                }
                            ],
                            "negate": false,
                            "operator": "OR"
                        }
                    ],
                    "operator": "AND"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Peter Ullrich"
                },
                {
                    "lang": "en",
                    "type": "reporter",
                    "value": "Peter Ullrich"
                },
                {
                    "lang": "en",
                    "type": "remediation developer",
                    "value": "Zach Daniel / Ash Project"
                },
                {
                    "lang": "en",
                    "type": "coordinator",
                    "value": "Jonatan Männchen / EEF"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "<p>Stored Cross-site Scripting vulnerability in ash-project ash_admin executes attacker-supplied record content as script in an administrator's browser.</p>\n<p>The relationship typeahead components <code>AshAdmin.Components.Resource.RelationshipField</code> and <code>AshAdmin.Components.Resource.ManagedRelationshipSelectField</code> highlight the matched search term by wrapping it in <code>&lt;b&gt;</code> tags and rendering the whole string with <code>Phoenix.HTML.raw/1</code>. The highlighted value is the destination record's <code>label_field</code>, ordinary database content that is often written by lower-privileged users. Because <code>raw/1</code> disables output escaping for the entire string, a stored label such as <code>&lt;img src=x onerror=...&gt;</code> 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.</p>\n<p>This issue affects ash_admin: from 0.13.0 before 1.3.1.</p>"
                        },
                        {
                            "base64": false,
                            "type": "text/markdown",
                            "value": "Stored Cross-site Scripting vulnerability in ash-project ash_admin executes attacker-supplied record content as script in an administrator's browser.\n\nThe 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.\n\nThis issue affects ash_admin: from 0.13.0 before 1.3.1."
                        }
                    ],
                    "value": "Stored Cross-site Scripting vulnerability in ash-project ash_admin executes attacker-supplied record content as script in an administrator's browser.\n\nThe 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.\n\nThis issue affects ash_admin: from 0.13.0 before 1.3.1."
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-592",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-592 Stored XSS"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "attackVector": "NETWORK",
                        "baseScore": 8.4,
                        "baseSeverity": "HIGH",
                        "privilegesRequired": "LOW",
                        "providerUrgency": "NOT_DEFINED",
                        "subAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "userInteraction": "ACTIVE",
                        "valueDensity": "NOT_DEFINED",
                        "vectorString": "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",
                        "version": "4.0",
                        "vulnAvailabilityImpact": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnerabilityResponseEffort": "NOT_DEFINED"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-79",
                            "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
                "shortName": "EEF",
                "dateUpdated": "2026-08-31T02:23:54.129Z"
            },
            "references": [
                {
                    "tags": [
                        "vendor-advisory",
                        "related"
                    ],
                    "url": "https://github.com/ash-project/ash_admin/security/advisories/GHSA-m23x-576h-73w8"
                },
                {
                    "tags": [
                        "related"
                    ],
                    "url": "https://cna.erlef.org/cves/CVE-2026-77850.html"
                },
                {
                    "tags": [
                        "related"
                    ],
                    "url": "https://osv.dev/vulnerability/EEF-CVE-2026-77850"
                },
                {
                    "tags": [
                        "patch"
                    ],
                    "url": "https://github.com/ash-project/ash_admin/commit/07289191ccdac27dd70ab7c6413ed057bc7fdade"
                }
            ],
            "source": {
                "discovery": "EXTERNAL"
            },
            "title": "Stored XSS in AshAdmin relationship typeahead via unescaped label_field content"
        }
    }
}