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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (42.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
Weakness classification (CWE)
References
- github.com/solonbarroso/vulnerability-research/blob/main/advisories/Twittodon/C… (Exploit, Third Party Advisory)
- github.com/solonbarroso/vulnerability-research/blob/main/advisories/Twittodon/C… (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.