CVE-2025-4852: totolink a3002r_firmware Cross-site Scripting

Vulnerability summary

CVE-2025-4852 is a medium (CVSS 4.8) Cross-site Scripting vulnerability in totolink a3002r_firmware. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 35.3% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 18-05-2025
   PublishedVulnerability first disclosed.
2. 19-05-2025
   Last modifiedVulnerability information updated.

Description

A vulnerability, which was classified as problematic, has been found in TOTOLINK A3002R 2.1.1-B20230720.1011. This issue affects some unknown processing of the component VPN Page. The manipulation of the argument Comment leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public 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.