CVE-2023-4036Public exploitNetwork attack vector

Authenticated post disclosure via unchecked shortcode target

Published Aug 30, 2023 · Updated May 2, 2025

IDOR in the Simple Blog Card WordPress plugin before 1.32 allows remote authenticated users to read nonpublic post titles and content. The simpleblogcard shortcode accepts an internal post-ID URL through the parse-media-shortcode AJAX action and renders the referenced post without checking that its status permits disclosure. Subscriber-level access is sufficient to expose drafts and private or password-protected posts to any logged-in account.

CVSS severity4.3
Medium
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

IDOR in the Simple Blog Card WordPress plugin before 1.32 allows remote authenticated users to read nonpublic post titles and content. The simpleblogcard shortcode accepts an internal post-ID URL through the parse-media-shortcode AJAX action and renders the referenced post without checking that its status permits disclosure. Subscriber-level access is sufficient to expose drafts and private or password-protected posts to any logged-in account.

The record

CVE
CVE-2023-4036
Published
Aug 30, 2023
Updated
May 2, 2025
Vendor
Katsushi Kawamori
Product
Simple Blog Card
Classifications
CWE-639, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 30, 2023CVE publishedPublication date reported by the CVE source.
  2. May 2, 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=0 <1.32

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Katsushi Kawamori · Simple Blog Cardversion=0 <1.32

Published CVSS scores

4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1190Exploit Public-Facing Application

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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