CVE-2025-32036 DNN allows the possibility of bypassing Captcha
Attackers can bypass DNN Captcha protection using OCR tools due to weak image generation, enabling automated spam or brute-force attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-32036?
CVE-2025-32036 is a medium-severity vulnerability in Dnnsoftware Dotnetnuke, published on 8 Apr 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-804
Which versions are affected by CVE-2025-32036?
It affects 1 product.
Products include Dnnsoftware Dotnetnuke.
How do I fix CVE-2025-32036?
No fix has been published for CVE-2025-32036 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-32036 being exploited?
There is no known exploitation of CVE-2025-32036 in the wild and no public exploit code.
Other vulnerabilities in Dnnsoftware Dotnetnuke
- CVE-2017-9822 DotNetNuke (DNN) Remote Code Execution
- CVE-2018-15811 DotNetNuke (DNN) Inadequate Encryption Strength
- CVE-2018-18325 DotNetNuke (DNN) Inadequate Encryption Strength
- CVE-2025-64095 DNN Insufficient Access Control - Image Upload allows for Site Content Overwrite
- CVE-2006-3601 Privilege escalation in n/a
Sources
Also known as GHSA-48q9-3p26-8595.