CVE-2023-41471

low-risk

Published 2025-08-29

Cross Site Scripting vulnerability in copyparty before 1.9.2 allows a local attacker to execute arbitrary code via a crafted payload to the WEEKEND-PLANS function. NOTE: this is disputed because WEEKEND-PLANS is accessible only to actors who already have write access to the server, and they can more simply upload HTML files containing JavaScript.

Do I need to act?

0.03% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.8/10 High

LOCAL / LOW complexity

Affected Products (1)

Copyparty

Affected Vendors

9001

References (3)

Product https://github.com/9001/copyparty

https://github.com/9001/copyparty/releases/tag/v1.9.2

Exploit https://github.com/Trinity-SYT-SECURITY/XSS_vuln_issue/blob/main/copyparty.md

/ 100

low-risk

Severity 24/34 · High

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal