What is CVE-2022-26255?

CVE-2022-26255 is a critical-severity vulnerability in Clash Project, classified under Cross-site Scripting. CVSS score: 9.8/10. Published 2022-03-28.

How severe is CVE-2022-26255?

Critical severity. CVSS v3 base score is 9.8 out of 10.

XSS in Clash Project

CVE-2022-26255

Clash for Windows v0.19.8 was discovered to allow arbitrary code execution via a crafted payload injected into the Proxies name column.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-03-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (77.5th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Clash Project — versions 0.19.8

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/Fndroid/clash_for_windows_pkg/issues/2710 (Exploit, Third Party Advisory, Release Notes, Issue Tracking)

Frequently asked questions

What is CVE-2022-26255?: CVE-2022-26255 is a critical-severity vulnerability in Clash Project, classified under Cross-site Scripting. CVSS score: 9.8/10. Published 2022-03-28.
How severe is CVE-2022-26255?: Critical severity. CVSS v3 base score is 9.8 out of 10.