CVE-2024-21516: opencart XSS — Exploit & Fix

Description

This affects versions of the package opencart/opencart from 4.0.0.0 and before 4.1.0.0. A reflected XSS issue was identified in the directory parameter of admin common/filemanager.list route. An attacker could obtain a user's token by tricking the user to click on a maliciously crafted URL. The user is then prompted to login and redirected again upon authentication with the payload automatically executing. If the attacked user has admin privileges, this vulnerability could be used as the start of a chain of exploits like Zip Slip or arbitrary file write vulnerabilities in the admin functionality. **Notes:** 1) This is only exploitable if the attacker knows the name or path of the admin directory. The name of the directory is "admin" by default but there is a pop-up in the dashboard warning users to rename it. 2) The fix for this vulnerability is incomplete. The redirect is removed so that it is not possible for an attacker to control the redirect post admin login anymore, but it is still possible to exploit this issue in admin if the user is authenticated as an admin already.

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CVSS v3.1 Score

4.2

MEDIUM

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
opencart	opencart	>= 4.0.0.0

References

Advisories & Patches

https://github.com/opencart/opencart/commit/c546199e8f100c1f3797a7a9d3cf4db1887399a2 https://security.snyk.io/vuln/SNYK-PHP-OPENCARTOPENCART-7266576 https://github.com/opencart/opencart/commit/c546199e8f100c1f3797a7a9d3cf4db1887399a2 https://security.snyk.io/vuln/SNYK-PHP-OPENCARTOPENCART-7266576

Exploits

https://security.snyk.io/vuln/SNYK-PHP-OPENCARTOPENCART-7266576 https://security.snyk.io/vuln/SNYK-PHP-OPENCARTOPENCART-7266576

Frequently Asked Questions

What is CVE-2024-21516? +

This affects versions of the package opencart/opencart from 4.0.0.0 and before 4.1.0.0. A reflected XSS issue was identified in the directory parameter of admin common/filemanager.list route. An attacker could obtain a user's token by tricking the user to click on a maliciously crafted URL. The user is then prompted to login and redirected again upon authentication with the payload automatically executing. If the attacked user has admin privileges, this vulnerability could be used as the start of a chain of exploits like Zip Slip or arbitrary file write vulnerabilities in the admin functionality. **Notes:** 1) This is only exploitable if the attacker knows the name or path of the admin directory. The name of the directory is "admin" by default but there is a pop-up in the dashboard warning users to rename it. 2) The fix for this vulnerability is incomplete. The redirect is removed so that it is not possible for an attacker to control the redirect post admin login anymore, but it is still possible to exploit this issue in admin if the user is authenticated as an admin already. It has a CVSS v3.1 base score of 4.2 (MEDIUM).

How severe is CVE-2024-21516? +

CVE-2024-21516 has a CVSS v3.1 score of 4.2 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-21516? +

CVE-2024-21516 affects products from opencart, specifically: opencart. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-21516? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-21516