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TI-2020-04236 Aliases CVE-2020-5142GHSA-mm23-cj9m-mh27

Cross-site scripting in SonicWall SonicOS

Priority LOW 30CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
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 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

A stored cross-site scripting (XSS) vulnerability exists in the SonicOS SSLVPN web interface. A remote unauthenticated attacker is able to store and potentially execute arbitrary JavaScript code in the firewall SSLVPN portal. This vulnerability affected SonicOS Gen 5 version 5.9.1.7, 5.9.1.13, Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version SonicOS 7.0.0.0.

Why it matters now

EPSS 0.01253 69th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
SonicWallSonicOSSonicOS 6.5.4.7-79n and earlier; SonicOS 5.9.1.7-2n and earlier; SonicOS 5.9.1.13-5n and earlier; SonicOS 6.5.1.11-4n and earlier; SonicOS 6.0.5.3-93o and earlier; SonicOSv 6.5.4.4-44v-21-794 and earlier; SonicOS 7.0.0.0-1—No fix listedCNA
  • SonicOS VendorSonicWall Affected SonicOS 6.5.4.7-79n and earlier; SonicOS 5.9.1.7-2n and earlier; SonicOS 5.9.1.13-5n and earlier; SonicOS 6.5.1.11-4n and earlier; SonicOS 6.0.5.3-93o and earlier; SonicOSv 6.5.4.4-44v-21-794 and earlier; SonicOS 7.0.0.0-1 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:*up to 5.9.1.13; 6.0.0.0 – 6.0.5.3; 6.5.0.0 – 6.5.1.11; 6.5.4.0 – 6.5.4.7VulnerableSonicWall
cpe:2.3:o:sonicwall:sonicos:7.0.0.0:*:*:*:*:*:*:*7.0.0.0VulnerableSonicWall
cpe:2.3:o:sonicwall:sonicosv:*:*:*:*:*:*:*:*up to 6.5.4.4VulnerableSonicWall
  • cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* Versions up to 5.9.1.13; 6.0.0.0 – 6.0.5.3; 6.5.0.0 – 6.5.1.11; 6.5.4.0 – 6.5.4.7 Vulnerable ·SonicWall
  • cpe:2.3:o:sonicwall:sonicos:7.0.0.0:*:*:*:*:*:*:* Versions 7.0.0.0 Vulnerable ·SonicWall
  • cpe:2.3:o:sonicwall:sonicosv:*:*:*:*:*:*:*:* Versions up to 6.5.4.4 Vulnerable ·SonicWall

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-5142
  2. 2026-10-03 Alias added: GHSA-mm23-cj9m-mh27

References

Advisory 1

  • TI-2020-04229 Buffer overflow in SonicWall SonicOS KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-35902 Improper authentication in SonicWall SonicOS KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-27152 Improper access control in SonicWall SonicOS KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-06604 Stack-based buffer overflow in SonicWall SonicOS CVSS 3.1CRITICAL 9.8
  • TI-2019-09143 Wind River VxWorks has a Buffer Overflow in the TCP component (issue 1 of 4). CVSS 3.1CRITICAL 9.8
  • TI-2019-09145 Wind River VxWorks 6.6 through 6.9 has a Buffer Overflow in the DHCP client component. CVSS 3.1HIGH 8.8
See all 67 →

Sources

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