CVE-2025-47916: invisioncommunity invision_power_board

Vulnerability summary

CVE-2025-47916 is a critical (CVSS 10.0) vulnerability in invisioncommunity invision_power_board. EPSS estimates a 84.19% chance of exploitation in the next 30 days, higher than 99.6% of scored vulnerabilities. 3 public exploits are recorded.

Timeline

1. 16-05-2025
   PublishedVulnerability first disclosed.
2. 17-05-2025
   Last modifiedVulnerability information updated.

Description

Invision Community 5.0.0 before 5.0.7 allows remote code execution via crafted template strings to themeeditor.php. The issue lies within the themeeditor controller (file: /applications/core/modules/front/system/themeeditor.php), where a protected method named customCss can be invoked by unauthenticated users. This method passes the value of the content parameter to the Theme::makeProcessFunction() method; hence it is evaluated by the template engine. Accordingly, this can be exploited by unauthenticated attackers to inject and execute arbitrary PHP code by providing crafted template strings.

• CWE-1336Improper Neutralization of Special Elements Used in a Template EngineThe product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine.
• CWE-94Improper Control of Generation of Code ('Code Injection')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.