⚠ Replicated advisory. This post reproduces an advisory originally researched and published under the CVE Hunters. It is republished here for reference. The original disclosure followed coordinated vulnerability disclosure and the rules of the CVE Program.

🔗 Original advisory: https://www.cvehunters.com/p/cve-2025-7871/
📋 CVE record: CVE-2025-7871

CVE Publication: https://www.cve.org/CVERecord?id=CVE-2025-7871

Summary

A Reflected Cross-Site Scripting (XSS) vulnerability was identified in the conteudos endpoint of the i-Diário application. This vulnerability allows attackers to inject malicious scripts into the filter[by_description] parameter.

Details

Vulnerable Endpoint: conteudos

Parameter: filter[by_description]

PoC

Payload:

  "><img src=x onerror=alert('XSS-PoC')>

Impact

  • Stealing session cookies: Attackers can use stolen session cookies to hijack a user's session and perform actions on their behalf.
  • Downloading malware: Attackers can trick users into downloading and installing malware on their computers.
  • Hijacking browsers: Attackers can hijack a user's browser or deliver browser-based exploits.
  • Stealing credentials: Attackers can steal a user's credentials.
  • Obtaining sensitive information: Attackers can obtain sensitive information stored in a user's account or in their browser.
  • Defacing websites: Attackers can deface a website by altering its content.
  • Misdirecting users: Attackers can change the instructions given to users who visit the target website, misdirecting their behavior.
  • Damaging a business's reputation: Attackers can damage a business's image or spread misinformation by defacing a corporate website.

Reference

https://github.com/CVE-Hunters/CVE/blob/main/i-diario/CVE-2025-7871.md

Finder

Natan Maia Morette

By: CVE-Hunters