CVE-2022-2398Network attack vector

Admin-level stored XSS via unescaped error message

Published Aug 8, 2022 · Updated Aug 3, 2024

Cross-site scripting in Comments Extra Fields For Post,Pages and CPT before 4.1 allows remote authenticated users to inject scripts through the plugin. The Field Error Message setting is stored and rendered without sufficient input sanitization or output escaping, allowing attacker-controlled web script to persist in pages. Exploitation requires administrative-level access, and the issue is relevant when unfiltered_html is disabled or on multisite installations; visiting an affected page executes the injected script in a viewer’s browser.

CVSS severity4.8
Medium
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Comments Extra Fields For Post,Pages and CPT before 4.1 allows remote authenticated users to inject scripts through the plugin. The Field Error Message setting is stored and rendered without sufficient input sanitization or output escaping, allowing attacker-controlled web script to persist in pages. Exploitation requires administrative-level access, and the issue is relevant when unfiltered_html is disabled or on multisite installations; visiting an affected page executes the injected script in a viewer’s browser.

The record

CVE
CVE-2022-2398
Published
Aug 8, 2022
Updated
Aug 3, 2024
Vendor
N-Media
Product
Comments Extra Fields For Post,Pages and CPT
Classifications
CWE-79, T1189
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 8, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=4.1 <4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

N-Media · Comments Extra Fields For Post,Pages and CPTversion=4.1 <4.1

Published CVSS scores

4.8NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
5.5WordfenceCVSS:3.1/AV:N/AC:L/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')
T1189Drive-by Compromise

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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