Discussion Board Plugin up to 2.5.5 on WordPress Shortcode code injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in Discussion Board Plugin up to 2.5.5 on WordPress. This vulnerability affects unknown code of the component Shortcode Handler. This manipulation causes Remote Privilege Escalation. This vulnerability is tracked as CVE-2025-8483. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in Discussion Board Plugin up to 2.5.5 on WordPress and classified as critical. Affected by this vulnerability is an unknown functionality of the component Shortcode Handler. The manipulation with an unknown input leads to a remote privilege escalation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The The Discussion Board – WordPress Forum Plugin plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 2.5.5. 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 authenticated attackers, with Subscriber-level access and above, to execute arbitrary shortcodes.

It is possible to read the advisory at wordfence.com. This vulnerability is known as CVE-2025-8483. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/25/2025). 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-2025-35923). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Forum Software

Name

• Discussion Board Plugin

Version

• 2.5.0
• 2.5.1
• 2.5.2
• 2.5.3
• 2.5.4
• 2.5.5

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

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