CVE-2026-56338

Capgo before 12.128.2 contains a denial of service vulnerability in the /auth/v1/otp endpoint that prevents email verification for two-factor authentication due to captcha validation failures. Authenticated users cannot complete 2FA enrollment as the backend consistently returns HTTP 500 errors...

CVE-2026-56338 Capgo - Denial of Service in 2FA Email Verification via /auth/v1/otp Endpoint

Capgo before 12.128.2 contains a denial of service vulnerability in the /auth/v1/otp endpoint that prevents email verification for two-factor authentication due to captcha validation failures. Authenticated users cannot complete 2FA enrollment as the backend consistently returns HTTP 500 errors...

CVE-2026-56338

Capgo prior to version 12.128.2 contains a denial-of-service flaw in the /auth/v1/otp endpoint used for 2FA email verification. The issue arises from captcha validation failures causing the backend to return HTTP 500 errors, preventing authenticated users from completing 2FA enrollment and access...

EUVD-2026-38752

Capgo before 12.128.2 contains a denial of service vulnerability in the /auth/v1/otp endpoint that prevents email verification for two-factor authentication due to captcha validation failures. Authenticated users cannot complete 2FA enrollment as the backend consistently returns HTTP 500 errors...

EUVD-2026-38669

The Blue Captcha plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to and including 2.0.1. This is due to missing or incorrect nonce validation on the main admin panel blcapmainpage and on the Hall of Shame and Log subpages, which accept a 'blcapaction' / 'action'...

phpMyFAQ <= 4.1.1 - SQL Injection

phpMyFAQ before 4.1.2 contains an unauthenticated SQL injection vulnerability in BuiltinCaptcha::garbageCollector and BuiltinCaptcha::saveCaptcha methods that interpolate unsanitized User-Agent headers into DELETE and INSERT queries. Unauthenticated attackers can exploit the public GET /api/captc...

Contact Form 7 Math Captcha <= 2.0.1 - Cross-site Scripting

The Contact Form 7 Math Captcha WordPress plugin through 2.0.1 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users. id: CVE-2024-6517 info: name: Contact Form 7 Math Captcha =...

Monstra CMS 3.0.4 - HTTP Header Injection

Monstra CMS 3.0.4 is susceptible to HTTP header injection in the plugins/captcha/crypt/cryptographp.php cfg parameter. An attacker can potentially supply invalid input and cause the server to allow redirects to attacker-controlled domains, perform cache poisoning, and/or allow improper access to...

TOTOLINK/Realtek Routers - CAPTCHA Bypass

On certain TOTOLINK Realtek SDK based routers, the CAPTCHA text can be retrieved via a POST request to the boafrm/formLogin URI with the JSON payload "topicurl":"setting/getSanvas". This allows an unauthenticated attacker to bypass CAPTCHA verification, gaining unauthorized access to restricted...

WordPress Blue Captcha plugin <= 2.0.1 - Cross-Site Request Forgery vulnerability

Cross-Site Request Forgery vulnerability discovered by Kamil Królikowski - Asseco Poland S.A. in WordPress Plugin Blue Captcha versions = 2.0.1...

EUVD-2026-36793

Discuz! X5.0 releases 20260320 through 20260610 contains a CAPTCHA bypass vulnerability that allows unauthenticated remote attackers to defeat challenge controls by exploiting limited complexity and predictable character sets in generated CAPTCHA images. Attackers can train a custom optical...

CVE-2026-49953

Discuz! X5.0 releases 20260320 through 20260610 contains a CAPTCHA bypass vulnerability that allows unauthenticated remote attackers to defeat challenge controls by exploiting limited complexity and predictable character sets in generated CAPTCHA images. Attackers can train a custom optical...

CVE-2026-49953 Discuz! X5.0 CAPTCHA Bypass via Predictable Character Set

Discuz! X5.0 releases 20260320 through 20260610 contains a CAPTCHA bypass vulnerability that allows unauthenticated remote attackers to defeat challenge controls by exploiting limited complexity and predictable character sets in generated CAPTCHA images. Attackers can train a custom optical...

CVE-2026-49953

Discuz! X5.0 (builds 20260320–20260610) contains a CAPTCHA bypass vulnerability where limited complexity and predictable character sets in generated CAPTCHA images enable unauthenticated remote attackers to reliably predict challenge text via OCR, bypassing protections on login, registration and ...

PT-2026-49308

Discuz! X5.0 releases 20260320 through 20260501 contains a CAPTCHA bypass vulnerability that allows unauthenticated remote attackers to defeat challenge controls by exploiting limited complexity and predictable character sets in generated CAPTCHA images. Attackers can train a custom optical...

EUVD-2026-36272

aiograpi is an asynchronous Instagram API for Python. aiograpi versions before 0.9.10 accepted server-supplied signup challenge paths and used them to build request URLs before validating that the paths were relative Instagram API paths. If an attacker can influence a challenge response, for...

Malicious code in @hatcha-captcha/core (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware c9a9310a4e2c8c3906b130725a5d8366ccad0df5529428fa9056c62f69f4c3b9 Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...

MAL-2026-5655 Malicious code in @hatcha-captcha/core (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware c9a9310a4e2c8c3906b130725a5d8366ccad0df5529428fa9056c62f69f4c3b9 Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...

CVE-2026-5411

The WP Captcha PRO the premium version of the Advanced Google reCAPTCHA plugin, both have the same slug plugin for WordPress is vulnerable to arbitrary file upload in all versions up to, and including, 5.38. This is due to a capability check in the saveajax function of the licensing module,...

CVE-2026-40935

WWBN AVideo is an open source video platform. In versions 29.0 and prior, objects/getCaptcha.php accepts the CAPTCHA length ql directly from the query string with no clamping or sanitization, letting any unauthenticated client force the server to generate a 1-character CAPTCHA word. Combined with...