CVE-2025-5323 Weak cryptography in open-event-server
Attackers can bypass security checks in email verification due to reliance on obfuscation without integrity validation in Open Event Server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-5323?
CVE-2025-5323 is a medium-severity vulnerability in fossasia open-event-server, published on 29 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability, which was classified as problematic, has been found in fossasia open-event-server 1.19.1. This issue affects the function send_email_change_user_email of the file /fossasia/open-event-server/blob/development/app/api/helpers/mail.py of the component Mail Verification Handler. The manipulation leads to reliance on obfuscation or encryption of security-relevant inputs without integrity checking. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2025-5323?
How do I fix CVE-2025-5323?
No fix has been published for CVE-2025-5323 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-5323 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-5323 exists.
Sources
Also known as GHSA-hgw8-7xf9-389h.