CVE-2023-41471 Cross-site scripting in n/a

What is CVE-2023-41471?

CVE-2023-41471 is a high-severity cross-site scripting vulnerability in n/a, published on 29 Aug 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-79

Which versions are affected by CVE-2023-41471?

1 open source package ship an affected version, including copyparty. It affects 1 product.

Products include 9001 Copyparty.

How do I fix CVE-2023-41471?

No fix has been published for CVE-2023-41471 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-41471 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-41471 exists.

Other vulnerabilities in n/a

• CVE-2025-54796 Copyparty is vulnerable to Regex Denial of Service (ReDoS) attacks through "Recent Uploads" page High 7.5
• CVE-2023-37474 Path traversal in copyparty High 7.5
• CVE-2025-54589 copyparty Reflected XSS via Filter Parameter Medium 6.3
• CVE-2023-38501 copyparty vulnerable to reflected cross-site scripting via k304 parameter Medium 6.3
• CVE-2026-27948 Copyparty vulnerable to eflected cross-site scripting via setck parameter Medium 5.4

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-4mcf-c9v4-fpcr, PYSEC-2025-240.