CVE-2024-10728Public exploitNetwork attack vector

Subscriber-level plugin installation via missing capability check

Published Nov 16, 2024 · Updated Apr 8, 2026

Missing authorization in WPXPO PostX 4.1.16 and earlier allows remote authenticated users to install and activate arbitrary plugins. The install_required_plugin_callback AJAX handler accepts a plugin descriptor and invokes WordPress installation and activation operations without checking the caller's capabilities. Subscriber-level access and a valid page-exposed nonce are sufficient; code execution additionally depends on installing and activating another vulnerable plugin.

CVSS severity8.8
High
EPSS probability38.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in WPXPO PostX 4.1.16 and earlier allows remote authenticated users to install and activate arbitrary plugins. The install_required_plugin_callback AJAX handler accepts a plugin descriptor and invokes WordPress installation and activation operations without checking the caller's capabilities. Subscriber-level access and a valid page-exposed nonce are sufficient; code execution additionally depends on installing and activating another vulnerable plugin.

The record

CVE
CVE-2024-10728
Published
Nov 16, 2024
Updated
Apr 8, 2026
Vendor
WPXPO
Product
PostX
Classifications
CWE-862, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record 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 <=4.1.16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WPXPO · PostXversion=0 <=4.1.16

Published CVSS scores

8.8WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

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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-862Missing Authorization
T1068Exploitation for Privilege Escalation

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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