Loading vulnerability…
CVE-2025-54589 is a reflected cross-site scripting vulnerability in Copyparty, a portable file server. In Copyparty versions 1.18.6 and earlier, the recent uploads page (/?ru) includes a filter input whose value is appended to the URL as a parameter. That parameter is then reflected directly into a <script> block without proper escaping or output encoding. As a result, attacker-controlled input can break out of the intended JavaScript context and execute arbitrary script in the victim’s browser when the crafted URL is loaded. The issue affects both authenticated and unauthenticated users who access the vulnerable page.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
/?ru) to trusted users or internal networks, placing the service behind authentication where feasible, and avoiding distribution of untrusted links to Copyparty pages. Deploy a restrictive Content Security Policy if compatible with the application to reduce XSS exploitability, though CSP should be treated as a defense-in-depth measure rather than a complete fix. Monitor logs and user reports for suspicious requests containing crafted filter parameters targeting /?ru.Patch, then assume compromise.
<script> block without context-appropriate escaping.No valid public exploits. Mallory filtered out 2 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
7 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.