CVE-2026-84437: Cross Site Scripting in OpenCart
Description
A vulnerability was found in OpenCart 4.1.0.3/4.1.0.4. The impacted element is an unknown function of the file catalog/controller/account/address.php of the component Autocomplete Workflow. The manipulation of the argument address_1 results in cross site scripting. It is possible to launch the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS v4.0
Score 5.1medium
Affected software
OpenCart
cpe:2.3:a:opencart:opencart:*:*:*:*:*:*:*:*AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-84437 is a medium-severity cross-site scripting vulnerability affecting OpenCart versions 4.1.0.3 and 4.1.0.4. The flaw is located in an unknown function of the catalog/controller/account/address.php file, specifically in the Autocomplete Workflow component. Manipulating the address_1 parameter enables remote attackers to execute arbitrary scripts in the context of the victim's browser. Although exploit code is publicly available, the vendor has not responded or provided a fix as of the publication date.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary scripts in the context of users interacting with the vulnerable OpenCart installation. This can lead to session hijacking, defacement, or other malicious actions that rely on executing JavaScript in the victim's browser. The vulnerability requires user interaction and limited privileges (low privileges), reducing but not eliminating risk.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or issued a fix, users should consider applying manual input validation or sanitization on the address_1 parameter as a temporary mitigation. Monitoring for updates from the vendor is recommended.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-01T19:18:41.478Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a977df2acd9273b49968674
Added to database: 09/02/2026, 01:37:54 UTC
Last enriched: 09/07/2026, 13:04:14 UTC
Last updated: 10/15/2026, 18:48:24 UTC
Views: 90
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.