CVE-2022-3506Public exploitNetwork attack vector

Stored script execution via unescaped heading_text output

Published Oct 14, 2022 · Updated May 14, 2025

Stored XSS in Barry Kooij Related Posts for WordPress before 2.1.3 allows remote authenticated users to execute scripts via heading_text. The do_field method reads the saved heading_text option and inserts it into an HTML input value without attribute escaping, allowing persistent script markup. Administrator-level access is required to save the payload, which executes when a user opens an injected page.

CVSS severity5.5
Medium
EPSS probability1.20%
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 Barry Kooij Related Posts for WordPress before 2.1.3 allows remote authenticated users to execute scripts via heading_text. The do_field method reads the saved heading_text option and inserts it into an HTML input value without attribute escaping, allowing persistent script markup. Administrator-level access is required to save the payload, which executes when a user opens an injected page.

The record

CVE
CVE-2022-3506
Published
Oct 14, 2022
Updated
May 14, 2025
Vendor
Barry Kooij
Product
Related Posts for WordPress
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 14, 2022CVE publishedPublication date reported by the CVE source.
  2. May 14, 2025Record 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=unspecified <2.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Barry Kooij · Related Posts for WordPressversion=unspecified <2.1.3

Published CVSS scores

5.5huntr.devCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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 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')
T1059.007JavaScript/JScript

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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