---
id: CVE-2025-55887
title: >-
  Cross-Site Scripting (XSS) vulnerability was discovered in the meal
  reservation service ARD
summary: >-
  Cross-Site Scripting (XSS) vulnerability was discovered in the meal
  reservation service ARD. The vulnerability exists in the transactionID GET
  parameter on the transaction confirmation page. Due to improper input
  validation and output en…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: ard
product: gec_en_ligne
affected:
  - gec_en_ligne
published: '2025-09-22'
updated: '2026-07-05'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-55887'
references:
  - url: 'https://github.com/0xZeroSec/CVE-2025-55887'
    label: cve@mitre.org
  - url: 'https://services.ard.fr/index.php'
    label: cve@mitre.org
  - url: 'https://github.com/0xZeroSec/CVE-2025-55887'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - exploit-available
epss: 0.00351
epssPercentile: 0.26123
ingestedAt: '2026-07-06T16:44:34.264Z'
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/0xZeroSec/CVE-2025-55887'
  checkedAt: '2026-09-26T09:05:34.067Z'
exploitAvailable: true
---

## Overview

Cross-Site Scripting (XSS) vulnerability was discovered in the meal reservation service ARD. The vulnerability exists in the transactionID GET parameter on the transaction confirmation page. Due to improper input validation and output encoding, an attacker can inject malicious JavaScript code that is executed in the context of a user s browser. This can lead to session hijacking, theft of cookies, and other malicious actions performed on behalf of the victim.

## Affected

- `gec_en_ligne`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.