CVE-2025-29459 Server-side request forgery in n/a
A remote attacker can exploit the Mail function in MyBB to perform Server-Side Request Forgery, potentially accessing sensitive internal information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-29459?
CVE-2025-29459 is a high-severity server-side request forgery vulnerability in Mybb Mybb, published on 17 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue in MyBB 1.8.38 allows a remote attacker to obtain sensitive information via the Mail function. NOTE: the Supplier disputes this because of the allowed actions of Board administrators and because of SSRF mitigation.
Weakness: CWE-918
Which versions are affected by CVE-2025-29459?
It affects 1 product.
Products include Mybb Mybb.
How do I fix CVE-2025-29459?
No fix has been published for CVE-2025-29459 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2025-29459 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-29459 exists.
Other vulnerabilities in Mybb Mybb
Sources
Also known as GHSA-2qhw-4vw3-x335.