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TI-2020-04693 Aliases CVE-2020-5765GHSA-w56w-fjv4-mc6j

Cross-site scripting in Tenable Nessus

Priority LOW 27CWE-79Published · Updated

Key facts

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

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

Summary

Nessus 8.10.0 and earlier were found to contain a Stored XSS vulnerability due to improper validation of input during scan configuration. An authenticated, remote attacker could potentially exploit this vulnerability to execute arbitrary code in a user's session. Tenable has implemented additional input validation mechanisms to correct this issue in Nessus 8.11.0.

Why it matters now

EPSS 0.01103 65th percentileScored 2026-11-07
Fix Fixed Tenable Nessus: 8.11.0

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
—Tenable Nessusbefore 8.11.08.11.0Patch availableCNA
  • Tenable Nessus Vendor— Affected before 8.11.0 Fixed in 8.11.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:*up to 8.10.0VulnerableTenable
  • cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:* Versions up to 8.10.0 Vulnerable ·Tenable

Remediation

  • Fix · CNA Tenable Nessus Fixed in 8.11.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-5765
  2. 2026-10-03 Alias added: GHSA-w56w-fjv4-mc6j

References

Advisory 1

  • TI-2022-00687 Infinite loop in BN_mod_sqrt() reachable when parsing certificates CVSS 3.1HIGH 7.5
  • TI-2021-20962 In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the… CVSS 3.1HIGH 8.8
  • TI-2021-21076 In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize. CVSS 3.1HIGH 8.1
  • TI-2021-02413 NULL pointer deref in signature_algorithms processing CVSS 3.1MEDIUM 5.9
  • TI-2021-02414 CA certificate check bypass with X509_V_FLAG_X509_STRICT CVSS 3.1HIGH 7.4
  • TI-2022-07855 Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for… CVSS 3.1CRITICAL 9.8
See all 67 →

Sources

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