CVE-2023-45008Network attack vector

Stored script execution via unsanitized settings

Published Oct 18, 2023 · Updated Apr 28, 2026

Stored XSS in WPJohnny Comment Reply Email 1.0.3 and earlier allows remote authenticated users to inject scripts into WordPress pages. Plugin settings accept administrator-supplied content without sufficient input sanitization or output escaping, causing stored web scripts to execute when an affected page is viewed. Administrator-level access is required, and exposure is limited to multisite installations or sites where unfiltered_html is disabled; a later page view triggers the payload.

CVSS severity5.9
Medium
EPSS probability0.32%
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 WPJohnny Comment Reply Email 1.0.3 and earlier allows remote authenticated users to inject scripts into WordPress pages. Plugin settings accept administrator-supplied content without sufficient input sanitization or output escaping, causing stored web scripts to execute when an affected page is viewed. Administrator-level access is required, and exposure is limited to multisite installations or sites where unfiltered_html is disabled; a later page view triggers the payload.

The record

CVE
CVE-2023-45008
Published
Oct 18, 2023
Updated
Apr 28, 2026
Vendor
WPJohnny
Product
Comment Reply Email
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 18, 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 <=1.0.3 changes=[{"at":"1.0.4","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

WPJohnny · Comment Reply Emailversion=n/a <=1.0.3 changes=[{"at":"1.0.4","status":"unaffected"}]

Published CVSS scores

5.9PatchstackCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
4.8NIST NVDCVSS: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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
T1059.007JavaScript/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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