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Guessable CAPTCHA

CVE-2025-32036

Medium
6.5/10

Summary

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 the intruder can send automatic requests by building a robot and using this tool. This issue affects DotNetNuke.Core versions prior to 9.13.8.

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  • NETWORK
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  • UNCHANGED
  • NONE
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CWE-804 - Guessable CAPTCHA

The software uses a CAPTCHA challenge, but the challenge can be guessed or automatically recognized by a non-human actor.

References

Advisory Timeline

  • Published