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Security Advisories: GSA_kwCzR0hTQS03Z2M0LXI1anItOWh4ds4AAvim

Gin-vue-admin subject to Remote Code Execution via file upload vulnerability


Gin-vue-admin < 2.5.4 has File upload vulnerabilities。
File upload vulnerabilities are when a web server allows users to upload files to its filesystem without sufficiently validating things like their name, type, contents, or size. Failing to properly enforce restrictions on these could mean that even a basic image upload function can be used to upload arbitrary and potentially dangerous files instead. This could even include server-side script files that enable remote code execution.





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The plugin installation function of Gin-Vue-Admin allows users to download zip packages from the plugin market and upload them for installation. This function has an arbitrary file upload vulnerability. A malicious attacker can upload a constructed zip package to traverse the directory and upload or overwrite arbitrary files on the server side.

The affected code line 880 called the utils.Unzip method

paths, err := utils.Unzip(GVAPLUGPINATH+file.Filename, GVAPLUGPINATH)
	paths = filterFile(paths)
	var webIndex = -1
	var serverIndex = -1
	for i := range paths {
		paths[i] = filepath.ToSlash(paths[i])
		pathArr := strings.Split(paths[i], "/")
		ln := len(pathArr)
		if ln < 2 {
		if pathArr[ln-2] == "server" && pathArr[ln-1] == "plugin" {
			serverIndex = i
		if pathArr[ln-2] == "web" && pathArr[ln-1] == "plugin" {
			webIndex = i
	if webIndex == -1 && serverIndex == -1 {
		return webIndex, serverIndex, errors.New("非标准插件,请按照文档自动迁移使用")

The code defines the utils.Unzip method

func Unzip(zipFile string, destDir string) ([]string, error) {
	zipReader, err := zip.OpenReader(zipFile)
	var paths []string
	if err != nil {
		return []string{}, err
	defer zipReader.Close()

	for _, f := range zipReader.File {
		fpath := filepath.Join(destDir, f.Name)
		paths = append(paths, fpath)
		if f.FileInfo().IsDir() {
			os.MkdirAll(fpath, os.ModePerm)

It can be analyzed that after uploading a zip compressed file, the Unzip method will be called to decompress the compressed file, and then judge whether the compressed file contains the fixed directory structure of server, web, and plugin.

Whether the zip file is correct or not, it will be decompressed first. If the directory does not exist, it will be created automatically. Therefore, malicious zip packages can be constructed, and directory traversal can be performed during automatic decompression to upload or overwrite any file.

Use the Zip Slip vulnerability to construct a malicious zip package with ../../../../ filenames, and upload the malicious zip package to trigger the vulnerability.


Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: over 1 year ago
Updated: over 1 year ago

CVSS Score: 9.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-7gc4-r5jr-9hxv, CVE-2022-39345
References: Repository:
Blast Radius: 13.2

Affected Packages
Dependent packages: 9
Dependent repositories: 22
Affected Version Ranges: < 2.5.4
Fixed in: 2.5.4
All affected versions:
All unaffected versions: