CVE-2020-23242Public exploitNetwork attack vector

Stored XSS via crafted Web user name

Published Jul 26, 2021 · Updated Aug 4, 2024

Stored XSS in NavigateCMS 2.9 allows remote authenticated users to execute script in an administrator's browser via a Tools name field. The Tools Web users Create/Edit workflow stores the Personal name value without neutralizing HTML event-handler markup and renders it when the site is loaded. Administrative access is required to store the payload, and execution requires another user to load the affected page; the documented consequence is script execution in that user's browser session.

CVSS severity4.8
Medium
EPSS probability0.53%
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 NavigateCMS 2.9 allows remote authenticated users to execute script in an administrator's browser via a Tools name field. The Tools Web users Create/Edit workflow stores the Personal name value without neutralizing HTML event-handler markup and renders it when the site is loaded. Administrative access is required to store the payload, and execution requires another user to load the affected page; the documented consequence is script execution in that user's browser session.

The record

CVE
CVE-2020-23242
Published
Jul 26, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1539
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 26, 2021CVE 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.8NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
3.5NVDAV:N/AC:M/Au:S/C:N/I:P/A:N

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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1539Steal Web Session Cookie

Public exploit references

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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