The API on Winston 1.5.4 devices is vulnerable to CSRF.

published 2020-10-28 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-8217

cvss: 8.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits: 0; none known

Exploit prediction

0.66% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

labs.bishopfox.com https://labs.bishopfox.com/advisories/winston-privacy-version-1.5.4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	9.3	AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness

CWE-352 Cross-Site Request Forgery

References

labs.bishopfox.com /advisories/winston-privacy-version-1.5.4
exploit, third-party-advisory
winstonprivacy.com /
product

Sources

CVE List CVE-2020-16256
NVD CVE-2020-16256

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary