CVE-2026-28683: Github.com/forceu/gokapi Cross-Site Scripting Vulnerability

HIGH
Advisory Identifier: GHSA-3c22-5j5m-4jq7
Share
CVSS 8.7
CWE-79
Published
Advisory Summary

CVE-2026-28683 is a HIGH (CVSS 8.7) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Github.com/forceu/gokapi libraries in the Go ecosystem. The issue involves gokapi has stored xss in svg hotlinks. Remediation is available by upgrading affected packages to version 2.2.3.

CVE-2026-28683 at a Glance

CVE Identifier CVE-2026-28683
GHSA Identifier GHSA-3c22-5j5m-4jq7
Severity HIGH
CVSS v3.1 Base Score 8.7
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Github.com/forceu/gokapi
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 8.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2026-28683

To remediate this vulnerability, upgrade all affected Github.com/forceu/gokapi dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/forceu/gokapi fixed: 2.2.3 
Upgrade github.com/forceu/gokapi to 2.2.3
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/forceu/gokapi

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-28683, inspect your project dependencies for Github.com/forceu/gokapi:

inspect dependencies for github.com/forceu/gokapi

Analyze the terminal output to locate any version of Github.com/forceu/gokapi in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.2.3), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where 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. In Github.com/forceu/gokapi, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Summary If a malicious authenticated user uploads SVG and creates a hotlink for it, they achieve stored XSS. ### Details The hotlinking functionality fails to properly handle scripts included in the SVGs, allowing authenticated attackers with the ability to upload and hotlink file to execute arbitrary JS. *Issue found by [aisafe.io](https://aisafe.io/)* ### Impact Authenticated attackers with the ability to upload and hotlink files can execute arbitrary JavaScript.

CVE-2026-28683 Affected Github.com/forceu/gokapi Versions

1 component(s)
Fixed Versions:
2.2.3
Product / Package Ecosystem Affected Versions Fixed Version
github.com/forceu/gokapi
golang/github.com/forceu/gokapi
Go
< 2.2.3
2.2.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/Forceu/Gokapi/security/advisories/GHSA-3c22-5j5m-4jq7
NVD — CVE-2026-28683 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28683
Github.com/forceu/gokapi Source Repository REPOSITORY
https://github.com/Forceu/Gokapi
Github.com/forceu/gokapi Release RELEASE
https://github.com/Forceu/Gokapi/releases/tag/v2.2.3

Frequently Asked Questions

What is CVE-2026-28683?
CVE-2026-28683 is a security vulnerability in Github.com/forceu/gokapi involving Gokapi has Stored XSS in SVG Hotlinks under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Github.com/forceu/gokapi versions are affected?
Affected versions include releases prior to 2.2.3 across affected packages: github.com/forceu/gokapi.
What version fixes CVE-2026-28683?
Upgrading to 2.2.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/forceu/gokapi affected?
Yes, github.com/forceu/gokapi is affected in releases prior to 2.2.3. Upgrade your dependency to 2.2.3 or later.
What is the CVSS score of CVE-2026-28683?
CVE-2026-28683 has a CVSS v3.1 base score of 8.7 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.
What CWE is associated with CVE-2026-28683?
CVE-2026-28683 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (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.).
How can I check Go dependencies for CVE-2026-28683?
Run the dependency tree command: 'inspect dependencies for github.com/forceu/gokapi'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-3c22-5j5m-4jq7",
  "modified" : "2026-03-06T15:17:00Z",
  "published" : "2026-03-05T18:40:05Z",
  "aliases" : [ "CVE-2026-28683" ],
  "summary" : "Gokapi has Stored XSS in SVG Hotlinks",
  "details" : "### Summary\nIf a malicious authenticated user uploads SVG and creates a hotlink for it, they achieve stored XSS.\n\n### Details\nThe hotlinking functionality fails to properly handle scripts included in the SVGs, allowing authenticated attackers with the ability to upload and hotlink file to execute arbitrary JS.\n\n*Issue found by [aisafe.io](https://aisafe.io/)*\n\n\n### Impact\nAuthenticated attackers with the ability to upload and hotlink files can execute arbitrary JavaScript.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/forceu/gokapi"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.2.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/Forceu/Gokapi/security/advisories/GHSA-3c22-5j5m-4jq7"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-28683"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/Forceu/Gokapi"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Forceu/Gokapi/releases/tag/v2.2.3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-05T18:40:05Z",
    "nvd_published_at" : "2026-03-06T05:16:38Z"
  }
}