CVE-2021-24819Public exploitNetwork attack vector

Restricted-content disclosure via unchecked shortcode post ID

Published Dec 13, 2021 · Updated Aug 3, 2024

Incorrect authorization in Page/Post Content Shortcode 1.0 and earlier allows remote authenticated users to read restricted WordPress content. The post-content-sc and page-content-sc shortcodes accept an attacker-chosen post ID and render draft, private, password-protected, or trashed content without checking whether the caller may view that post. Contributor-level access is sufficient to preview a post containing the shortcode and disclose content belonging to administrators or editors.

CVSS severity4.3
Medium
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Page/Post Content Shortcode 1.0 and earlier allows remote authenticated users to read restricted WordPress content. The post-content-sc and page-content-sc shortcodes accept an attacker-chosen post ID and render draft, private, password-protected, or trashed content without checking whether the caller may view that post. Contributor-level access is sufficient to preview a post containing the shortcode and disclose content belonging to administrators or editors.

The record

CVE
CVE-2021-24819
Published
Dec 13, 2021
Updated
Aug 3, 2024
Vendor
MMDeveloper
Product
Page/Post Content Shortcode
Classifications
CWE-863, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 13, 2021CVE 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=1.0 <=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MMDeveloper · Page/Post Content Shortcodeversion=1.0 <=1.0

Published CVSS scores

4.3NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0NVDAV:N/AC:L/Au:S/C:P/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-863Incorrect Authorization
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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