VulnerabilityModified

CVE-2023-41471

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.

HIGH 7.8EPSS 0.26%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 3.1: 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: 0.26% probability · 18th percentile
CISA KEV: Not listed
Weakness: CWE-79
Affected: 9001/copyparty
Source: cve@mitre.org

References

https://github.com/9001/copypartyProduct
https://github.com/9001/copyparty/releases/tag/v1.9.2
https://github.com/Trinity-SYT-SECURITY/XSS_vuln_issue/blob/main/copyparty.mdExploit, Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.