YOP Poll <= 6.5.28 - Reusable Captcha via validateImage

Guessable CAPTCHA
CVE CVE-2023-46611
CVSS Medium (5.3)
Publicly Published October 24, 2023
Last Updated January 22, 2024
Researcher qilin_99
Description

The YOP Poll plugin for WordPress is vulnerable to captcha bypass due to a reusable captcha bypass in the validateImage function in all versions up to, and including, 6.5.28. This makes it possible for unauthenticated attackers to vote multiple times using the same captcha image

References

1 affected software package

Software Type Plugin
Software Slug yop-poll (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 6.5.28
Patched Version
  • 6.5.29
This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.
License: Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy. License Detail.