CVE-2021-24661Public exploitNetwork attack vector

Private-post disclosure via unchecked saved-template shortcode

Published Sep 27, 2021 · Updated Aug 3, 2024

Information disclosure in WPXPO PostX before 2.4.10 allows remote authenticated users to read private posts through saved templates. With the Saved Templates Addon enabled, the shortcode preview resolves an attacker-supplied post ID and displays the referenced content without enforcing its private or password-protected status. Contributor-level access and knowledge of a post ID are required, and exposure is limited to post contents the account cannot normally read.

CVSS severity4.3
Medium
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in WPXPO PostX before 2.4.10 allows remote authenticated users to read private posts through saved templates. With the Saved Templates Addon enabled, the shortcode preview resolves an attacker-supplied post ID and displays the referenced content without enforcing its private or password-protected status. Contributor-level access and knowledge of a post ID are required, and exposure is limited to post contents the account cannot normally read.

The record

CVE
CVE-2021-24661
Published
Sep 27, 2021
Updated
Aug 3, 2024
Vendor
WPXPO
Product
PostX
Classifications
CWE-200, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 27, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.4.10 <2.4.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WPXPO · PostXversion=2.4.10 <2.4.10

Published CVSS scores

3.5NVDAV:N/AC:M/Au:S/C:P/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-200Exposure of Sensitive Information to an Unauthorized Actor
T1213Data from Information Repositories

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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