Description
Formbricks is an open source qualtrics alternative. Prior to version 4.0.1, Formbricks is missing JWT signature verification. This vulnerability stems from a token validation routine that only decodes JWTs (jwt.decode) without verifying their signatures. Both the email verification token login path and the password reset server action use the same validator, which does not check the token’s signature, expiration, issuer, or audience. If an attacker learns the victim’s actual user.id, they can craft an arbitrary JWT with an alg: "none" header and use it to authenticate and reset the victim’s password. This issue has been patched in version 4.0.1.
INFO
Published Date :
2025-09-26T23:03:30.995Z
Last Modified :
2025-09-29T14:59:51.354Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2025-59934 vulnerability.
| Vendors | Products |
|---|---|
| Formbricks |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2025-59934.
