CVE-2023-38501
Description
copyparty is file server software. Prior to version 1.8.7, the application contains a reflected cross-site scripting via URL-parameter `?k304=...` and `?setck=...`. The worst-case outcome of this is being able to move or delete existing files on the server, or upload new files, using the account of the person who clicks the malicious link. It is recommended to change the passwords of one's copyparty accounts, unless one have inspected one's logs and found no trace of attacks. Version 1.8.7 contains a patch for the issue.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
copyparty v1.8.6 - Reflected Cross Site Scripting (XSS)
# Exploit Title: copyparty v1.8.6 - Reflected Cross Site Scripting (XSS)
# Date: 23/07/2023
# Exploit Author: Vartamtezidis Theodoros (@TheHackyDog)
# Vendor Homepage: https://github.com/9001/copyparty/
# Software Link: https://github.com/9001/copyparty/releases/tag/v1.8.6
# Version: <=1.8.6
# Tested on: Debian Linux
# CVE : CVE-2023-38501
#Description
Copyparty is a portable file server. Versions prior to 1.8.6 are subject to a reflected cross-site scripting (XSS) Attack.
Vulnerability that exists in the web interface of the application could allow an attacker to execute malicious javascript code by tricking users into accessing a malicious link.
#POC
https://localhost:3923/?k304=y%0D%0A%0D%0A%3Cimg+src%3Dcopyparty+onerror%3Dalert(1)%3EReferences
- https://github.com/9001/copyparty/security/advisories/GHSA-f54q-j679-p9hh
- https://nvd.nist.gov/vuln/detail/CVE-2023-38501
- https://github.com/9001/copyparty/commit/007d948cb982daa05bc6619cd20ee55b7e834c38
- https://github.com/9001/copyparty
- https://github.com/9001/copyparty/releases/tag/v1.8.7
- https://github.com/pypa/advisory-database/tree/main/vulns/copyparty/PYSEC-2023-132.yaml
- http://packetstormsecurity.com/files/173821/Copyparty-1.8.6-Cross-Site-Scripting.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.