---
id: CVE-2026-50787
title: >-
  e-SIC Livre (esiclivre) v0.2.2 and earlier contains an uncontrolled resource
  consumption vulnerability in restrito/inc/captcha.php
summary: >-
  e-SIC Livre (esiclivre) v0.2.2 and earlier contains an uncontrolled resource
  consumption vulnerability in restrito/inc/captcha.php. The application uses
  user-supplied parameters (l, a, tf, ql) without validation to generate CAPTCHA
  image…
severity: none
exploitAvailable: true
published: '2026-10-23'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T15:44:11.973Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-50787'
references:
  - url: >-
      https://github.com/esiclivre/esiclivre/blob/master/restrito/inc/captcha.php
  - url: 'https://github.com/brynax/CVE-2026-50787'
tags:
  - cve.org
  - exploit-available
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/brynax/CVE-2026-50787'
  checkedAt: '2026-10-23T16:31:46.499Z'
ingestedAt: '2026-10-23T16:31:11.327Z'
---

## Overview

e-SIC Livre (esiclivre) v0.2.2 and earlier contains an uncontrolled resource consumption vulnerability in restrito/inc/captcha.php. The application uses user-supplied parameters (l, a, tf, ql) without validation to generate CAPTCHA images, allowing remote attackers to cause denial of service via excessive memory and CPU consumption.

## Remediation

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