CVE-2025-63950 Deserialization in n/a
Remote unauthenticated attackers can cause denial of service in Twittodon by injecting arbitrary PHP objects via the download.php script.
- 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-2025-63950?
CVE-2025-63950 is a high-severity unsafe deserialization vulnerability in n/a, published on 18 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An insecure deserialization vulnerability exists in the download.php script of the to3k Twittodon application through commit b1c58a7d1dc664b38deb486ca290779621342c0b (2023-02-28). The 'obj' parameter receives base64-encoded data that is passed directly to the unserialize() function without validation. This allows a remote, unauthenticated attacker to inject arbitrary PHP objects, leading to a denial of service.
Weakness: CWE-502
Which versions are affected by CVE-2025-63950?
It affects 1 product.
Products include Tomaszdunia Twittodon.
How do I fix CVE-2025-63950?
No fix has been published for CVE-2025-63950 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2025-63950 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63950 exists.
Sources
Also known as GHSA-h848-297q-7v3g.