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TI-2026-37303 Aliases CVE-2026-50592GHSA-fjc3-384j-842g

Cross-site scripting in Znuny

Priority LOW 27CWE-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
Fixed

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

Summary

In Znuny LTS before 6.5.21 and Znuny before 7.3.3, there is reflected XSS in AdminCommunicationLog (aka the communication log administration view).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00148 3rd percentileScored 2026-11-07
Fix Fixed Znuny (Znuny): 6.5.21, 7.3.3

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
ZnunyZnunybefore 6.5.21; 7.0.0 to before 7.3.36.5.21, 7.3.3Patch availableCNA
  • Znuny VendorZnuny Affected before 6.5.21; 7.0.0 to before 7.3.3 Fixed in 6.5.21, 7.3.3 Patch available CNA

Remediation

  • Fix · CNA Znuny (Znuny) Fixed in 6.5.21, 7.3.3

Fixed in the same release

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

  • Release ·

    Znuny 6.5.21, 7.3.3

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-37302 In Znuny LTS before 6.5.21 and Znuny before 7.3.3, XSS can occur via stored user preferences.Priority LOW 23
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-50592
  2. 2026-10-03 Alias added: GHSA-fjc3-384j-842g

References

Other 1

  • TI-2025-19719 An issue was discovered in Znuny before 7.1.4. CVSS 3.1CRITICAL 9.8
  • TI-2025-19718 An Eval Injection issue was discovered in Znuny through 7.1.3. CVSS 3.1CRITICAL 9.8
  • TI-2025-19717 An issue was discovered in Znuny through 7.1.3. CVSS 3.1CRITICAL 9.8
  • TI-2025-19720 An issue was discovered in Znuny before 7.1.5. CVSS 3.1CRITICAL 9.1
  • TI-2024-21383 An issue was discovered in Znuny and Znuny LTS 6.0.31 through 6.5.7 and Znuny 7.0.1… CVSS 3.1CRITICAL 9.8
  • TI-2026-74584 Authentication bypass in Znuny via forged Remote-User header CVSS 4.0CRITICAL 9.5
See all 15 →

Sources

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