CVE-2023-23875Network attack vector

Stored XSS via unsanitized admin settings

Published May 3, 2023 · Updated Apr 28, 2026

Stored XSS in Himanshu Parashar's Bing Site Verification plugin using Meta Tag 1.0 and earlier allows remote authenticated users to inject scripts. The admin settings path stores input without sufficient sanitization and renders it without output escaping, causing browsers to execute the saved payload. Exploitation requires administrator-level access and affects multisite installations or sites where unfiltered_html is disabled; viewing an injected page triggers the script.

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 XSS in Himanshu Parashar's Bing Site Verification plugin using Meta Tag 1.0 and earlier allows remote authenticated users to inject scripts. The admin settings path stores input without sufficient sanitization and renders it without output escaping, causing browsers to execute the saved payload. Exploitation requires administrator-level access and affects multisite installations or sites where unfiltered_html is disabled; viewing an injected page triggers the script.

The record

CVE
CVE-2023-23875
Published
May 3, 2023
Updated
Apr 28, 2026
Vendor
Himanshu Parashar
Product
Bing Site Verification plugin using Meta Tag
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 3, 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 privilegesauthenticated

What is affected?

Himanshu Parashar · Bing Site Verification plugin using Meta Tagversion=n/a <=1.0

Published CVSS scores

4.4WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/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
4.8NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

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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