What is CVE-2025-63950?

CVE-2025-63950 is a high-severity vulnerability in Tomaszdunia Twittodon, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2025-12-18.

How severe is CVE-2025-63950?

High severity. CVSS v3 base score is 7.5 out of 10.

Deserialization in Tomaszdunia Twittodon

CVE-2025-63950

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.

Vulnerability class: Insecure Deserialization

EPSS: 0.005 (37.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Tomaszdunia Twittodon
N/a — versions n/a

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

cve@mitre.org (Exploit, Third Party Advisory)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-63950?: CVE-2025-63950 is a high-severity vulnerability in Tomaszdunia Twittodon, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2025-12-18.
How severe is CVE-2025-63950?: High severity. CVSS v3 base score is 7.5 out of 10.