HexBrain

U.S. Dept Of Defense · Report #3053220

XSS on ███

Validstatus
mediumseverity
12upvotes
12 Jan 2026disclosed

How it was found

Description

A reflected Cross-Site Scripting (XSS) vulnerability exists on the ████ search

Steps

  1. Visit: █████████
  2. Enter this in the search: test`-alert(0)-`k or simply visit: ████████
  3. XSS is Executed!

Impact

An attacker can potentially:

  • Steal credentials or session tokens by accessing document.cookie or localStorage.
  • Log keystrokes to capture sensitive user input, including passwords or credit card data.
  • Perform actions on behalf of authenticated users (e.g., change settings, send messages).
  • Deface parts of the UI or inject misleading content (e.g., fake login prompts).
  • Exfiltrate CSRF tokens or other DOM-accessible secrets.
  • Redirect users to malicious sites or deliver browser-based exploits.
  • Propagate the payload across users (e.g., wormable XSS in chat or profile systems).

System Host(s)

██████

Affected Product(s) and Version(s)

CVE Numbers

Steps to Reproduce

  1. Visit: ████████
  2. Enter this in the search: test`-alert(0)-`k or simply visit: ██████
  3. XSS is Executed!

Suggested Mitigation/Remediation Actions

This report was disclosed publicly on HackerOne and belongs to its author and the program. See the original