CVE-2020-5663
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 · uneditedStored cross-site scripting vulnerability in XooNIps 3.49 and earlier allows remote authenticated attackers to inject arbitrary script via unspecified vectors.
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 confidenceStored cross-site scripting (XSS) vulnerability in XooNIps versions 3.49 and earlier allows authenticated remote attackers to inject malicious scripts that persist on the server and execute in the browsers of other users who view the injected 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<= 3.49CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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.
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Identify installed Xoonips versionCheck the application version information typically found in the admin panel, about page, or version file within the Xoonips installation directoryAffected if The version displayed is 3.49 or any version lower than 3.49
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Confirm authentication is enabledVerify that user authentication is active and accessible on the Xoonips instance, typically through the login page or admin configurationAffected if Authentication is enabled and users can log in to the system
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Locate user-submittable content areasIdentify areas where authenticated users can submit, create, or modify data such as item metadata, descriptions, comments, or profile fieldsAffected if There are input fields or forms where authenticated users can submit content that gets stored on the server
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Check if submitted content is displayed to other usersReview whether stored user content is rendered and visible to other users when they access the system, as this is required for the stored XSS to affect othersAffected if Content submitted by one user is displayed to other users without sufficient output encoding
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Verify output encoding is not appliedInspect the application's handling of user-submitted content by viewing how submitted scripts or HTML tags are rendered in the browser of other usersAffected if Special characters or script tags submitted in user content are rendered as-is rather than being encoded or sanitized before display
If the installed Xoonips version is 3.49 or earlier, authentication is enabled, and the application displays stored user content to other users without proper output encoding, the environment is affected by this stored XSS vulnerability.
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 input validation and output encoding for all user-supplied content, particularly in areas where authenticated users can submit or modify data. Upgrade to a patched version if available and consider implementing Content Security Policy headers.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-5663 — 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-2020-5663 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
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- 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
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