CVE-2023-41471

Name: CVE-2023-41471
Creator: NVD / NIST
Published: 2025-08-29T19:15:32.31+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2023-41471 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.24%

15.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
9001	Copyparty	1.9.1

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

Timeline

Published: Aug 29, 2025
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-41471?

How severe is CVE-2023-41471?

CVE-2023-41471 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2023-41471?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-41471?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST