{"id":"CVE-2023-41471","aliases":["PYSEC-2025-240"],"title":"Cross Site Scripting vulnerability in copyparty before 1.9.2 allows a local attacker to execute arbitrary code via a crafted payload to t…","summary":"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…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","vendor":"copyparty","product":"copyparty","ecosystem":"pip","affected":["copyparty <= 1.9.1"],"published":"2025-08-29","updated":"2026-07-13","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/PYSEC-2025-240","references":[{"url":"https://github.com/9001/copyparty/releases/tag/v1.9.2"},{"url":"https://github.com/9001/copyparty"},{"url":"https://github.com/Trinity-SYT-SECURITY/XSS_vuln_issue/blob/main/copyparty.md"}],"tags":["osv","pip"],"epss":0.00261,"epssPercentile":0.18219,"ingestedAt":"2026-07-13T18:58:06.626Z","slug":"CVE-2023-41471","body":"## Overview\n\nCross 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.\n\n## Affected packages\n\n- `copyparty <= 1.9.1`\n\n## Remediation\n\nRefer to the advisory for the patched release.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}