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TI-2026-54208 Aliases CVE-2026-77850

Stored XSS in AshAdmin relationship typeahead via unescaped label_field content

Priority HIGH 72CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00483 41st percentileScored 2026-11-07
Fix Fixed ash_admin (ash-project): 1.3.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ash-projectash_admin0.13.0 to before 1.3.11.3.1Patch availableCNA
  • ash_admin Vendorash-project Affected 0.13.0 to before 1.3.1 Fixed in 1.3.1 Patch available CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:*———
  • cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

  • Fix · CNA ash_admin (ash-project) Fixed in 1.3.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    ash-project ash_admin 1.3.1

    7 records Highest priority Priority HIGH 4 HIGH, 2 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-57010 Path traversal in AshAdmin file uploads via unsanitized client filenamePriority HIGH 75
    • TI-2026-57040 AshAdmin LiveView events intern atoms from client input, exhausting the atom table (node DoS)Priority HIGH 69
    • TI-2026-53032 AshAdmin cookie reader matches names by substring, enabling actor/session shadowing from a sibling subdomainPriority HIGH 69
    Show all 7 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-77850

References

Patch 1

Advisory 1

Other 2

  • TI-2026-56298 Query-complexity limit bypass via first/last pagination arguments in AshGraphql enables denial of service CVSS 4.0HIGH 8.7
  • TI-2026-52572 Unbounded atom creation from client-supplied RPC field names in AshTypescript field formatter CVSS 4.0HIGH 8.7
  • TI-2026-57010 Path traversal in AshAdmin file uploads via unsanitized client filename CVSS 4.0HIGH 8.3
  • TI-2026-26840 Ash Framework: Ash.Type.Module.cast_input/2 atom exhaustion via unchecked Module.concat allows BEAM VM crash CVSS 4.0HIGH 8.2
  • TI-2026-54252 EEx template evaluation of prompt content in AshAi enables remote code execution CVSS 4.0HIGH 8.9
  • TI-2026-56295 Unhandled KeyError in AshGraphql relay node resolution crashes queries via an unknown type segment CVSS 4.0MEDIUM 6.9
See all 90 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences