CVE-2022-39026
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 · uneditedU-Office Force UserDefault page has insufficient filtering for special characters in the HTTP header fields. A remote attacker with general user privilege can exploit this vulnerability to inject JavaScript and perform XSS (Stored Cross-Site Scripting) attack.
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 confidenceU-Office Force UserDefault page fails to sanitize special characters in HTTP header fields, allowing a remote authenticated user to inject malicious JavaScript that persists in the application and executes when other users view the affected content.
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<= 20.50.7821dCVSS 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 checksWork through these to decide whether this CVE applies to you.
-
Confirm U-Office Force installation and versionLocate the U-Office Force installation directory and check for version information in the application metadata, about page, or configuration files. Common paths include the program installation folder or web root.Affected if The installed version is 20.50.7821d or any version lower than 20.50.7821d (20.50.7821d itself is also affected).
-
Verify UserDefault page exists and is accessibleAttempt to access the UserDefault page endpoint in the web application. This is typically found at a path containing 'UserDefault' in the U-Office Force web interface.Affected if The UserDefault page loads and accepts user input or HTTP header fields.
-
Identify HTTP header processing on UserDefault pageInspect the application's behavior when submitting requests to the UserDefault page with custom HTTP header fields. Check the application logs or use a proxy to observe how header values are stored and reflected.Affected if The application accepts and stores values from HTTP header fields without sanitization, allowing special characters to be persisted.
-
Check for existing XSS payloads in application dataReview stored data in the application database or user profiles that correspond to UserDefault page content. Look for JavaScript tags, event handlers, or script URLs in fields derived from HTTP headers.Affected if Malicious script tags or event handlers are found stored in application data associated with UserDefault page functionality.
If U-Office Force version 20.50.7821d or lower is installed and the UserDefault page is accessible, the environment is vulnerable to CVE-2022-39026 and may contain persisted XSS payloads in HTTP header-derived fields.
Generated from the published advisory. Verify against your own configuration.
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 dataImplement strict input validation and output encoding for all HTTP header field inputs on the UserDefault page to neutralize XSS payloads.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,848.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-39026 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2022-39026 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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.
- 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