What’s Vulnerable › Vulnerabilities

CVE-2025-32036: DNN allows the possibility of bypassing Captcha

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-08 · updated 2026-06-17
• Weakness: CWE-804

Description

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 vulnerability is fixed in 9.13.8.

Affected products

• DotNetNuke CMS Fixed in 9.1.1: before 9.13.8 — fixed in 9.13.8

How to fix

Upgrade to a fixed version: DotNetNuke CMS Fixed in 9.1.1 9.13.8. Check the vendor advisory for mitigations.

References

• https://github.com/dnnsoftware/Dnn.Platform/commit/abda726e75f1938c8d89795b5dceb80dc4e2e6c5
• https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-48q9-3p26-8595

Get alerted when CVE-2025-32036 or the next vulnerability affects your stack