SSRF in Woahai321 Listsync
CVE-2026-3958
A vulnerability has been found in Woahai321 ListSync up to 0.6.6. This issue affects the function requests.post of the file list-sync-main/api_server.py of the component JSON Handler. The manipulation leads to server-side request forgery. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.003 (26.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Woahai321 Listsync — versions 0.6.0, 0.6.1, 0.6.2
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- github.com/Woahai321/list-sync/issues/79 (issue-tracking)
- github.com/Woahai321/list-sync/issues/79 (issue-tracking, exploit)
Frequently asked questions
- What is CVE-2026-3958?
- CVE-2026-3958 is a medium-severity vulnerability in Woahai321 Listsync, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.3/10. Published 2026-03-11.
- How severe is CVE-2026-3958?
- Medium severity. CVSS v3 base score is 6.3 out of 10.