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)

EPSS: 0.002 (10.3th percentile) — read the EPSS interpretation.

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.

Affected products

Weakness classification (CWE)

References

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.