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Vulnerability record · CVE-2025-48495 · published 2 June 2025

CVE-2025-48495: Forceu gokapi cross-site scripting vulnerability

Forceu · Gokapi

Gokapi is a self-hosted file sharing server with automatic expiration and encryption support. By renaming the friendly name of an API key, an authenticated user could inject JS into the API key overview, which would also be executed when another user clicks on his API tab. Prior to version 2.0.0, there was no user permission system implemented, therefore all authenticated users were already able to see and modify all resources, even if end-to-end encrypted, as the encryption key had to be the same for all users of versions prior to 2.0.0. If a user is the only authenticated user using Gokapi, they are not affected. This issue has been fixed in v2.0.0. A workaround would be to not open the API page if it is possible that another user might have injected code.

4.8 CVSS 4.0 Medium EPSS 0.13% · top 97.7% CWE-79 · Cross-site scriptingCWE-87 · CWE-87
4.8CVSS 4.0 base score
0.13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Gokapi is a self-hosted file sharing server with automatic expiration and encryption support. By renaming the friendly name of an API key, an authenticated user could inject JS into the API key overview, which would also be executed when another user clicks on his API tab. Prior to version 2.0.0, there was no user permission system implemented, therefore all authenticated users were already able to see and modify all resources, even if end-to-end encrypted, as the encryption key had to be the same for all users of versions prior to 2.0.0. If a user is the only authenticated user using Gokapi, they are not affected. This issue has been fixed in v2.0.0. A workaround would be to not open the API page if it is possible that another user might have injected code.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/Forceu/Gokapi/commit/65ddbc68fbfdf1c80cadb477f4bcbb7f2c4fdbf8 Patch
https://github.com/Forceu/Gokapi/security/advisories/GHSA-4xg4-54hm-9j77 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.7CVE-2026-28683Forceu gokapi cross-site scripting vulnerabilityGokapi is a self-hosted file sharing server with automatic expiration and encryption support. Prior to version 2.2.3, if a malicious authenticated us…EPSS 0.24%6.5CVE-2026-30955Forceu gokapi uncontrolled resource consumption vulnerabilityGokapi is a self-hosted file sharing server with automatic expiration and encryption support. Prior to 2.2.4, An API endpoint accepts unbounded reque…EPSS 0.29%6.4CVE-2026-28682Forceu gokapi information exposure vulnerabilityGokapi is a self-hosted file sharing server with automatic expiration and encryption support. Prior to version 2.2.3, the upload status SSE implement…EPSS 0.16%5.4CVE-2026-29061Forceu gokapi improper access control vulnerabilityGokapi is a self-hosted file sharing server with automatic expiration and encryption support. Prior to version 2.2.3, a privilege escalation vulnerab…EPSS 0.15%5.0CVE-2026-29060Forceu gokapi improper access control vulnerabilityGokapi is a self-hosted file sharing server with automatic expiration and encryption support. Prior to version 2.2.3, a registered user without privi…EPSS 0.17%4.8CVE-2025-48494Forceu gokapi cross-site scripting vulnerabilityGokapi is a self-hosted file sharing server with automatic expiration and encryption support. When using end-to-end encryption, a stored cross-site s…EPSS 0.17%4.6CVE-2026-29084Forceu gokapi cross-site request forgery vulnerabilityGokapi is a self-hosted file sharing server with automatic expiration and encryption support. Prior to version 2.2.3, the login flow accepts credenti…EPSS 0.09%4.3CVE-2026-30961Forceu gokapi allocation without limits vulnerabilityGokapi is a self-hosted file sharing server with automatic expiration and encryption support. Prior to 2.2.4, the chunked upload completion path for …EPSS 0.28%

Source: NIST National Vulnerability Database (record CVE-2025-48495), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.