CVE-2020-5737Network attack vector

Authenticated script execution via stored browser input

Published Apr 17, 2020 · Updated Aug 4, 2024

Stored XSS in Tenable Security Center before 5.14.0 allows remote authenticated users to execute scripts in a victim's browser session. Tenable has not disclosed the request parameter or rendering component; stored attacker-controlled input is rendered without sufficient validation. Exploitation requires authenticated access and a victim to view the stored content in Internet Explorer or Edge, exposing data and actions available to that browser session.

CVSS severity5.4
Medium
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Tenable Security Center before 5.14.0 allows remote authenticated users to execute scripts in a victim's browser session. Tenable has not disclosed the request parameter or rendering component; stored attacker-controlled input is rendered without sufficient validation. Exploitation requires authenticated access and a victim to view the stored content in Internet Explorer or Edge, exposing data and actions available to that browser session.

The record

CVE
CVE-2020-5737
Published
Apr 17, 2020
Updated
Aug 4, 2024
Vendor
Tenable
Product
Tenable Security Center
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 17, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 5.14.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Tenable · Tenable Security Centerversion=< 5.14.0

Published CVSS scores

3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
3.9TenableAV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.0TenableAV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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