Open Xchange AppsuiteApplication · Open Xchange

CVE-2022-29853

MEDIUM · 5.4 CVSS v3.1 Published 2022-12-26
Fix available
A fix is available. Upgrade to 7.10.5 or later.
See remediation →
58/100
Remediation priority · Elevated
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
OX App Suite through 8.2 allows XSS via a certain complex hierarchy that forces use of Show Entire Message for a huge HTML e-mail message.

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 · moderate confidence

OX App Suite through version 8.2 contains a stored XSS vulnerability in its email rendering functionality. Attackers can craft HTML emails with complex hierarchical structures that bypass sanitization checks, particularly when the 'Show Entire Message' feature is triggered for large messages. The malformed HTML allows injection of malicious scripts that execute in the context of the victim's session.

MitigationImplement robust HTML sanitization using a well-established library (e.g., DOMPurify, sanitize-html) with strict allowlists before rendering email content. Consider disabling JavaScript execution in email rendering entirely.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

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
Open Xchange AppsuiteApplication
Affected:< 7.10.5= 7.10.5= 7.10.6= 8.2

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
Low
Integrity
Low
Availability
None

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify OX App Suite version
    Access the admin interface or use system commands to retrieve the installed OX App Suite version number. Common methods include checking the package manager, admin panel 'About' section, or version API endpoint.
    Affected if Installed version is 7.10.5, 7.10.6, 8.2, or any version lower than 7.10.5
  2. Confirm email module is active
    Verify that the email rendering functionality is enabled for users. Check admin console settings or user permissions for email access.
    Affected if Email module is enabled and users can receive/view HTML emails
  3. Verify 'Show Entire Message' feature accessibility
    Check whether users have access to the 'Show Entire Message' option, typically available when handling large messages. This may be visible in email client settings or triggered automatically for messages exceeding size thresholds.
    Affected if Users can trigger 'Show Entire Message' for large email attachments or oversized messages
  4. Inspect email sanitization configuration
    Examine the server configuration files or admin settings for HTML email sanitization. Look for any custom sanitization logic or settings that may override default protection mechanisms.
    Affected if Sanitization is disabled, customized, or uses a non-robust library that may not handle complex hierarchical HTML structures

Your environment is affected if you run OX App Suite version 7.10.5, 7.10.6, 8.2, or any version below 7.10.5, with the email module enabled and users able to view HTML emails, particularly when the 'Show Entire Message' feature can be triggered.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

From vendor data
Upgrade available Upgrade to 7.10.5 or later
Fixed in 7.10.5
Interim mitigation

Implement robust HTML sanitization using a well-established library (e.g., DOMPurify, sanitize-html) with strict allowlists before rendering email content. Consider disabling JavaScript execution in email rendering entirely.

Fix this in Open Xchange Appsuite Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing10.0 h
  • Review / QA6.0 h
34.0 hours of engineering $5,940
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $9,504.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2022-29853 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

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-2022-29853 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