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Help DeskApplication · Wyomind

CVE-2021-33351

CRITICAL · 9.0 CVSS v3.1 Published 2023-03-08
Fix available
A fix is available. Upgrade to 1.3.7 or later.
See remediation →
94/100
Remediation priority · Urgent
Public exploit Remotely reachable

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Cross Site Scripting Vulnerability in Wyomind Help Desk Magento 2 extension v.1.3.6 and before and fixed in v.1.3.7 allows attackers to escalte privileges via a crafted payload in the ticket message field.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-79

Untrusted input is placed into a web page without being neutralised, so an attacker's markup or script executes in another user's browser. That can hijack sessions, capture keystrokes, or silently perform actions as the victim. Fixing it properly means context-aware output encoding everywhere data meets HTML, backed by a content-security policy as a second line of defence.

General guidance for the cross-site scripting (xss) class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Help DeskApplication
Affected:< 1.3.7

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 1.3.7 or later
Fixed in 1.3.7
Recommended fix High confidence

1.3.7

  1. 1. Create a complete backup of your Magento 2 database and files before proceeding with any upgrade.
  2. 2. Download Wyomind Help Desk extension version 1.3.7 from the official Wyomind website (www.wyomind.com) or the Magento Marketplace.
  3. 3. Install the new version using composer (e.g., composer require wyomind/helpdesk:1.3.7) or upload via the Magento admin panel, depending on your installation method.
  4. 4. Run the Magento upgrade command: php bin/magneto setup:upgrade
  5. 5. Deploy static content if needed: php bin/magneto setup:static-content:deploy
  6. 6. Clear the Magento cache: php bin/magneto cache:flush
  7. 7. Verify the installed version is 1.3.7 in the Magento admin panel under Stores > Configuration > Wyomind > Help Desk.
  8. 8. Test the ticket message functionality to confirm the XSS vulnerability is patched and the extension is functioning correctly.

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,600. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-33351 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data