CWE-804
Guessable CAPTCHA
Description
The product uses a CAPTCHA challenge, but the challenge can be guessed or automatically recognized by a non-human actor.
Hierarchy (View 1000)
CVEs mapped to this weakness (19)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2025-40916 | Cri | 0.59 | 9.1 | 0.00 | Jun 16, 2025 | Mojolicious::Plugin::CaptchaPNG version 1.05 for Perl uses a weak random number source for generating the captcha. That version uses the built-in rand() function for generating the captcha text as well as image noise, which is insecure. | ||
| CVE-2025-50850 | Hig | 0.56 | 8.6 | 0.00 | Jul 31, 2025 | An issue was discovered in CS Cart 4.18.3 allows the vendor login functionality lacks essential security controls such as CAPTCHA verification and rate limiting. This allows an attacker to systematically attempt various combinations of usernames and passwords (brute-force… | ||
| CVE-2022-1801 | Hig | 0.49 | 7.5 | 0.01 | Jun 20, 2022 | The Very Simple Contact Form WordPress plugin before 11.6 exposes the solution to the captcha in the rendered contact form, both as hidden input fields and as plain text in the page, making it very easy for bots to bypass the captcha check, rendering the page a likely target for… | ||
| CVE-2026-49953 | Med | 0.42 | 6.5 | 0.00 | Jun 15, 2026 | 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… | ||
| CVE-2026-27411 | Med | 0.35 | 5.4 | 0.00 | Mar 5, 2026 | Guessable CAPTCHA vulnerability in jp-secure SiteGuard WP Plugin siteguard allows Functionality Bypass.This issue affects SiteGuard WP Plugin: from n/a through <= 1.7.9. | ||
| CVE-2025-70129 | Med | 0.34 | 5.3 | 0.00 | Mar 10, 2026 | If the anti spam-captcha functionality in PluXml versions 5.8.22 and earlier is enabled, a captcha challenge is generated with a format that can be automatically recognized for articles, such that an automated script is able to solve this anti-spam mechanism trivially and… | ||
| CVE-2024-31295 | Med | 0.34 | 5.3 | 0.00 | May 17, 2024 | Guessable CAPTCHA vulnerability in BestWebSoft Captcha by BestWebSoft allows Functionality Bypass.This issue affects Captcha by BestWebSoft: from n/a through 5.2.0. | ||
| CVE-2024-30540 | Med | 0.34 | 5.3 | 0.00 | May 17, 2024 | Guessable CAPTCHA vulnerability in Guido VS Contact Form allows Functionality Bypass.This issue affects VS Contact Form: from n/a through 14.7. | ||
| CVE-2023-6963 | Med | 0.34 | 5.3 | 0.01 | Feb 5, 2024 | The Getwid – Gutenberg Blocks plugin for WordPress is vulnerable to CAPTCHA Bypass in versions up to, and including, 2.0.4. This makes it possible for unauthenticated attackers to bypass the Captcha Verification of the Contact Form block by omitting 'g-recaptcha-response' from… | ||
| CVE-2022-4036 | Med | 0.34 | 5.3 | 0.00 | Nov 29, 2022 | The Appointment Hour Booking plugin for WordPress is vulnerable to CAPTCHA bypass in versions up to, and including, 1.3.72. This is due to the use of insufficiently strong hashing algorithm on the CAPTCHA secret that is also displayed to the user via a cookie. | ||
| CVE-2026-40935 | Med | 0.27 | 5.3 | 0.00 | Apr 21, 2026 | 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… | ||
| CVE-2025-1262 | Med | 0.27 | 5.3 | 0.00 | Feb 25, 2025 | The Advanced Google reCaptcha plugin for WordPress is vulnerable to CAPTCHA Bypass in versions up to, and including, 1.27 . This makes it possible for unauthenticated attackers to bypass the Built-in Math Captcha Verification. | ||
| CVE-2023-1539 | Med | 0.27 | 5.3 | 0.01 | Mar 21, 2023 | Improper Restriction of Excessive Authentication Attempts in GitHub repository answerdev/answer prior to 1.0.6. | ||
| CVE-2025-10423 | Low | 0.24 | 3.7 | 0.00 | Sep 15, 2025 | A vulnerability was found in newbee-mall 1.0. Impacted is the function mallKaptcha of the file /common/mall/kaptcha. The manipulation results in guessable captcha. The attack can be executed remotely. A high complexity level is associated with this attack. The exploitability is… | ||
| CVE-2024-23567 | Med | 0.00 | 4.3 | 0.00 | Jul 17, 2026 | HCL Aftermarket EPC is affected by Sensitive Information in GET method & in URL which allows application to pass sensitive data via URL parameters during normal usage. Data passed in this manner can be exposed because it may end up stored in unintended locations, including… | ||
| CVE-2024-23566 | Med | 0.00 | 6.5 | 0.00 | Jul 17, 2026 | HCL Aftermarket EPC is vulnerable to brute force attacks since application doesn’t have captcha implemented. It can lead to various security issues like brute force , automated attacks & account enumeration | ||
| CVE-2026-13082 | Med | 0.00 | 5.3 | 0.00 | Jul 17, 2026 | GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets. The random method creates the challenge text used for the CAPTCHA by sampling characters from an array using Perl's built-in rand function, and generates a (by default) six-character string. The… | ||
| CVE-2025-8546 | Med | 0.00 | 5.3 | 0.00 | Aug 5, 2025 | A vulnerability, which was classified as problematic, was found in atjiu pybbs up to 6.0.0. This affects the function adminlogin/login of the component Verification Code Handler. The manipulation leads to guessable captcha. It is possible to initiate the attack remotely. The… | ||
| CVE-2025-32036 | Med | 0.00 | 4.2 | 0.00 | Apr 8, 2025 | DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. The algorithm used to generate the captcha image shows the least complexity of the desired image. For this reason, the created image can be easily read by OCR tools, and… |
- risk 0.59cvss 9.1epss 0.00
Mojolicious::Plugin::CaptchaPNG version 1.05 for Perl uses a weak random number source for generating the captcha. That version uses the built-in rand() function for generating the captcha text as well as image noise, which is insecure.
- risk 0.56cvss 8.6epss 0.00
An issue was discovered in CS Cart 4.18.3 allows the vendor login functionality lacks essential security controls such as CAPTCHA verification and rate limiting. This allows an attacker to systematically attempt various combinations of usernames and passwords (brute-force…
- risk 0.49cvss 7.5epss 0.01
The Very Simple Contact Form WordPress plugin before 11.6 exposes the solution to the captcha in the rendered contact form, both as hidden input fields and as plain text in the page, making it very easy for bots to bypass the captcha check, rendering the page a likely target for…
- risk 0.42cvss 6.5epss 0.00
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…
- risk 0.35cvss 5.4epss 0.00
Guessable CAPTCHA vulnerability in jp-secure SiteGuard WP Plugin siteguard allows Functionality Bypass.This issue affects SiteGuard WP Plugin: from n/a through <= 1.7.9.
- risk 0.34cvss 5.3epss 0.00
If the anti spam-captcha functionality in PluXml versions 5.8.22 and earlier is enabled, a captcha challenge is generated with a format that can be automatically recognized for articles, such that an automated script is able to solve this anti-spam mechanism trivially and…
- risk 0.34cvss 5.3epss 0.00
Guessable CAPTCHA vulnerability in BestWebSoft Captcha by BestWebSoft allows Functionality Bypass.This issue affects Captcha by BestWebSoft: from n/a through 5.2.0.
- risk 0.34cvss 5.3epss 0.00
Guessable CAPTCHA vulnerability in Guido VS Contact Form allows Functionality Bypass.This issue affects VS Contact Form: from n/a through 14.7.
- risk 0.34cvss 5.3epss 0.01
The Getwid – Gutenberg Blocks plugin for WordPress is vulnerable to CAPTCHA Bypass in versions up to, and including, 2.0.4. This makes it possible for unauthenticated attackers to bypass the Captcha Verification of the Contact Form block by omitting 'g-recaptcha-response' from…
- risk 0.34cvss 5.3epss 0.00
The Appointment Hour Booking plugin for WordPress is vulnerable to CAPTCHA bypass in versions up to, and including, 1.3.72. This is due to the use of insufficiently strong hashing algorithm on the CAPTCHA secret that is also displayed to the user via a cookie.
- risk 0.27cvss 5.3epss 0.00
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…
- risk 0.27cvss 5.3epss 0.00
The Advanced Google reCaptcha plugin for WordPress is vulnerable to CAPTCHA Bypass in versions up to, and including, 1.27 . This makes it possible for unauthenticated attackers to bypass the Built-in Math Captcha Verification.
- risk 0.27cvss 5.3epss 0.01
Improper Restriction of Excessive Authentication Attempts in GitHub repository answerdev/answer prior to 1.0.6.
- risk 0.24cvss 3.7epss 0.00
A vulnerability was found in newbee-mall 1.0. Impacted is the function mallKaptcha of the file /common/mall/kaptcha. The manipulation results in guessable captcha. The attack can be executed remotely. A high complexity level is associated with this attack. The exploitability is…
- risk 0.00cvss 4.3epss 0.00
HCL Aftermarket EPC is affected by Sensitive Information in GET method & in URL which allows application to pass sensitive data via URL parameters during normal usage. Data passed in this manner can be exposed because it may end up stored in unintended locations, including…
- risk 0.00cvss 6.5epss 0.00
HCL Aftermarket EPC is vulnerable to brute force attacks since application doesn’t have captcha implemented. It can lead to various security issues like brute force , automated attacks & account enumeration
- risk 0.00cvss 5.3epss 0.00
GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets. The random method creates the challenge text used for the CAPTCHA by sampling characters from an array using Perl's built-in rand function, and generates a (by default) six-character string. The…
- risk 0.00cvss 5.3epss 0.00
A vulnerability, which was classified as problematic, was found in atjiu pybbs up to 6.0.0. This affects the function adminlogin/login of the component Verification Code Handler. The manipulation leads to guessable captcha. It is possible to initiate the attack remotely. The…
- risk 0.00cvss 4.2epss 0.00
DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. The algorithm used to generate the captcha image shows the least complexity of the desired image. For this reason, the created image can be easily read by OCR tools, and…