9001 copyparty up to 1.20.10 cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.5$0-$5k0.00

Summaryinfo

A vulnerability was found in 9001 copyparty up to 1.20.10. It has been rated as problematic. This affects an unknown part. This manipulation causes cross site scripting. This vulnerability is tracked as CVE-2026-30974. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in 9001 copyparty up to 1.20.10 and classified as problematic. Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

Copyparty is a portable file server. Prior to v1.20.11., the nohtml config option, intended to prevent execution of JavaScript in user-uploaded HTML files, did not apply to SVG images. A user with write-permission could upload an SVG containing embedded JavaScript, which would execute in the context of whichever user opens it. This has been fixed in v1.20.11.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-30974 since 03/07/2026. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 1.20.11 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 1c9f894e149b6be3cc7de81efc93a4ce4766e0e5 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔒

CNA Base Score: 4.6
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: copyparty 1.20.11
Patch: 1c9f894e149b6be3cc7de81efc93a4ce4766e0e5

Timelineinfo

03/07/2026 CVE reserved
03/10/2026 +3 days Advisory disclosed
03/10/2026 +0 days VulDB entry created
03/14/2026 +4 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-m6hv-x64c-27mm
Status: Confirmed

CVE: CVE-2026-30974 (🔒)
GCVE (CVE): GCVE-0-2026-30974
GCVE (VulDB): GCVE-100-350077

Entryinfo

Created: 03/10/2026 19:46
Updated: 03/14/2026 02:54
Changes: 03/10/2026 19:46 (67), 03/14/2026 02:54 (12)
Complete: 🔍
Cache ID: 216::103

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