---
id: CVE-2026-77026
title: >-
  Joomla Extension - tassos.gr - Client-controlled validation bypass in Convert
  Forms extension 1.0.0-4.4.16, 5.0.0-5.2.5
summary: >-
  Joomla Extension - tassos.gr - Client-controlled validation bypass in Convert
  Forms extension 1.0.0-4.4.16, 5.0.0-5.2.5 - CAPTCHA and field validation
  bypass.
severity: medium
cvss: 6.9
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-602
vendor: tassos.gr
product: Convert Forms extension for Joomla
affected:
  - convert_forms_extension_for_joomla 1.0.0-4.4.16
  - convert_forms_extension_for_joomla 5.0.0-5.2.5
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-08-20T15:36:52.015664Z'
published: '2026-08-20'
updated: '2026-11-02'
sourceUpdated: '2026-11-02T13:20:40.204Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-77026'
references:
  - url: 'https://www.tassos.gr/joomla-extensions/convert-forms'
tags:
  - cve.org
epss: 0.00454
epssPercentile: 0.39541
ingestedAt: '2026-11-05T19:30:42.642Z'
---

## Overview

Joomla Extension - tassos.gr - Client-controlled validation bypass in Convert Forms extension 1.0.0-4.4.16, 5.0.0-5.2.5 - CAPTCHA and field validation bypass.

## Affected

- `convert_forms_extension_for_joomla 1.0.0-4.4.16`
- `convert_forms_extension_for_joomla 5.0.0-5.2.5`

## Remediation

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