Shortcode Ajax Plugin up to 1.0 on WordPress do_shortcode code injection

Summaryinfo

A vulnerability was found in Shortcode Ajax Plugin up to 1.0 on WordPress. It has been classified as critical. The affected element is the function do_shortcode of the component Shortcode Handler. Performing a manipulation of the argument code results in Remote Code Execution. This vulnerability was named CVE-2025-14539. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, was found in Shortcode Ajax Plugin up to 1.0 on WordPress. This affects the function do_shortcode of the component Shortcode Handler. The manipulation of the argument code with an unknown input leads to a remote code execution vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The The Shortcode Ajax plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 1.0. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.

It is possible to read the advisory at wordfence.com. This vulnerability is uniquely identified as CVE-2025-14539. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/13/2025). The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-203212). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• WordPress Plugin

Name

• Shortcode Ajax Plugin

Version

• 1.0

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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