CVE-2023-23806Network attack vector

Browser script execution via unescaped admin settings

Published Apr 23, 2023 · Updated Apr 28, 2026

Stored cross-site scripting in Davinder Singh WordPress Custom Settings 1.0 and earlier allows remote authenticated users to inject scripts. The plugin stores administrator-supplied settings without sufficient input sanitization and renders them without output escaping, causing saved scripts to execute when an affected page is opened. Administrator-level access is required, and exploitation affects multisite installations or sites where unfiltered_html is disabled and requires another user to open the injected page.

CVSS severity5.9
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Davinder Singh WordPress Custom Settings 1.0 and earlier allows remote authenticated users to inject scripts. The plugin stores administrator-supplied settings without sufficient input sanitization and renders them without output escaping, causing saved scripts to execute when an affected page is opened. Administrator-level access is required, and exploitation affects multisite installations or sites where unfiltered_html is disabled and requires another user to open the injected page.

The record

CVE
CVE-2023-23806
Published
Apr 23, 2023
Updated
Apr 28, 2026
Vendor
Davinder Singh
Product
WordPress Custom Settings
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record 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=n/a <=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Davinder Singh · WordPress Custom Settingsversion=n/a <=1.0

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
5.9PatchstackCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
4.4WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/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.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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