CVE-2025-11421: code-projects voting_system Cross-site Scripting

Vulnerability summary

CVE-2025-11421 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in code-projects voting_system. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.5% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 08-10-2025
   PublishedVulnerability first disclosed.
2. 24-02-2026
   Last modifiedVulnerability information updated.

Description

A flaw has been found in code-projects Voting System 1.0. The affected element is an unknown function of the file /admin/candidates_edit.php. This manipulation of the argument Firstname/Lastname/Platform causes cross site scripting. Remote exploitation of the attack is possible. The exploit has been published and may be used.

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
• 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.