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TI-2026-63402 Aliases CVE-2026-94376GHSA-5vv2-wcc7-jmpm

Better Messages <= 3.0.4 - Authenticated (Subscriber+) Stored DOM-Based Cross-Site Scripting via User Display Name

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via User Display Name in all versions up to, and including, 3.0.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is exploitable by Subscriber-level users because WordPress core's sanitize_text_field() preserves HTML-entity-encoded payloads (e.g., an iframe srcdoc attribute), allowing the encoded string to be stored as a display name without requiring the unfiltered_html capability, and the plugin subsequently decodes it server-side before rendering.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00188 8th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
wordplusBetter Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Botsup to 3.0.4—No fix listedCNA
  • Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots Vendorwordplus Affected up to 3.0.4 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-94376
  2. 2026-10-03 Alias added: GHSA-5vv2-wcc7-jmpm

References

Other 4

  • TI-2024-12652 Information disclosure in wordplus Better Messages – Live Chat, Chat Rooms, Real-Time… CVSS 3.1HIGH 7.5
  • TI-2022-20012 WordPress Better Messages plugin <= 1.9.10.68 - Server-Side Request Forgery (SSRF) vulnerability CVSS 3.1HIGH 8.8
  • TI-2021-07091 BP Better Messages < 1.9.9.41 - Multiple CSRF CVSS 3.1HIGH 8.8
  • TI-2026-30959 WordPress BP Better Messages plugin <= 2.14.16 - Insecure Direct Object References (IDOR) vulnerability CVSS 3.1HIGH 7.5
  • TI-2022-16728 WordPress Better Messages plugin <= 1.9.9.148 - Cross-Site Request Forgery (CSRF) vulnerability CVSS 3.1HIGH 8.8
  • TI-2026-13837 Path traversal in wordplus Better Messages – Chat Rooms, Group Chat, Private Messages &… CVSS 3.1HIGH 7.2
See all 24 →

Sources

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