CVE-2025-54589Public exploitNetwork attack vector

Script execution via unescaped recent-uploads filter

Published Jul 31, 2025 · Updated Jul 31, 2025

Reflected XSS in 9001 copyparty 1.18.6 and earlier allows remote attackers to execute JavaScript via the recent-uploads filter. The tx_rups handler embeds filter-derived JSON in the rups template's script block without encoding HTML-significant characters. Exploitation requires a victim to open a crafted URL; the script then runs in that victim's browser context and can perform actions with the victim's web-session authority.

CVSS severity6.3
Medium
EPSS probability2.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in 9001 copyparty 1.18.6 and earlier allows remote attackers to execute JavaScript via the recent-uploads filter. The tx_rups handler embeds filter-derived JSON in the rups template's script block without encoding HTML-significant characters. Exploitation requires a victim to open a crafted URL; the script then runs in that victim's browser context and can perform actions with the victim's web-session authority.

The record

CVE
CVE-2025-54589
Published
Jul 31, 2025
Updated
Jul 31, 2025
Vendor
copyparty
Product
copyparty
Classifications
CWE-80, CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 31, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.18.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

copyparty · copypartyversion=< 1.18.7

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution: Malicious Link

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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