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...

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 ...

CVE-2020-37228

iDS6 DSSPro Digital Signage System 6.2 contains a CAPTCHA security bypass vulnerability that allows attackers to bypass authentication by requesting the autoLoginVerifyCode object. Attackers can retrieve valid CAPTCHA codes via the login endpoint and use them to perform brute-force attacks agains...

CVE-2020-37228

iDS6 DSSPro Digital Signage System 6.2 contains a CAPTCHA security bypass vulnerability that allows attackers to bypass authentication by requesting the autoLoginVerifyCode object. Attackers can retrieve valid CAPTCHA codes via the login endpoint and use them to perform brute-force attacks agains...

CVE-2020-37228 iDS6 DSSPro Digital Signage System 6.2 CAPTCHA Security Bypass

iDS6 DSSPro Digital Signage System 6.2 contains a CAPTCHA security bypass vulnerability that allows attackers to bypass authentication by requesting the autoLoginVerifyCode object. Attackers can retrieve valid CAPTCHA codes via the login endpoint and use them to perform brute-force attacks agains...

EUVD-2020-31229

iDS6 DSSPro Digital Signage System 6.2 contains a CAPTCHA security bypass vulnerability that allows attackers to bypass authentication by requesting the autoLoginVerifyCode object. Attackers can retrieve valid CAPTCHA codes via the login endpoint and use them to perform brute-force attacks agains...

CVE-2020-37228 iDS6 DSSPro Digital Signage System 6.2 CAPTCHA Security Bypass

iDS6 DSSPro Digital Signage System 6.2 contains a CAPTCHA security bypass vulnerability that allows attackers to bypass authentication by requesting the autoLoginVerifyCode object. Attackers can retrieve valid CAPTCHA codes via the login endpoint and use them to perform brute-force attacks agains...

CVE-2020-37228

The CVE-2020-37228 entry concerns iDS6 DSSPro Digital Signage System 6.2, where a CAPTCHA security bypass allows authentication bypass by requesting the autoLoginVerifyCode object. Attackers can obtain valid CAPTCHA codes via the login endpoint and use them to brute-force user accounts. The vulne...

PT-2026-41428

iDS6 DSSPro Digital Signage System 6.2 contains a CAPTCHA security bypass vulnerability that allows attackers to bypass authentication by requesting the autoLoginVerifyCode object. Attackers can retrieve valid CAPTCHA codes via the login endpoint and use them to perform brute-force attacks agains...

PT-2026-37296

Name of the Vulnerable Software and Affected Versions AVideo versions prior to 29.0 Description An issue exists in the 'objects/sendEmail.json.php' endpoint where the absence of the contactForm parameter allows unauthenticated users to send emails to arbitrary recipients. When this parameter is...

Guessable CAPTCHA

Overview wwbn/avideo is an Audio and Video Platform or simply "A Video Platform". Affected versions of this package are vulnerable to Guessable CAPTCHA through the objects/getCaptcha.php process. An attacker can bypass CAPTCHA protections by manipulating the ql parameter to generate trivially sho...

CVE-2026-40935 WWBN/AVideo has CAPTCHA Bypass via Attacker-Controlled Length Parameter and Missing Token Invalidation on Failure

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...

EUVD-2026-24527

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...

CVE-2026-40935 WWBN/AVideo has CAPTCHA Bypass via Attacker-Controlled Length Parameter and Missing Token Invalidation on Failure

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...

CVE-2026-40935

WWBN/AVideo (versions ≤ 29.0) is affected by a CAPTCHA bypass involving objects/getCaptcha.php. The ql parameter is read directly from the query string without clamping or sanitization, allowing an unauthenticated client to request a 1-character CAPTCHA word. Coupled with a case-insensitive strca...

GHSA-HG7G-56H5-5PQR CAPTCHA Bypass in WWBN/AVideo via Attacker-Controlled Length Parameter and Missing Token Invalidation on Failure

Summary 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 a case-insensitive strcasecmp comparison over a 33-character...

CAPTCHA Bypass in WWBN/AVideo via Attacker-Controlled Length Parameter and Missing Token Invalidation on Failure

Summary 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 a case-insensitive strcasecmp comparison over a 33-character...