CVE-2023-0320
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 · uneditedImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Izmir Katip Celebi University UBYS allows Stored XSS. This issue affects UBYS: before 23.03.16.
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 confidenceA stored cross-site scripting (XSS) vulnerability exists in Izmir Katip Celebi University's UBYS system, allowing malicious JavaScript to be persistently injected into the application and executed in the browsers of other users who 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< 23.03.16CVSS 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.
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Identify UBYS versionLocate the version information in the UBYS application - check the system information page, About section, or footer area where version numbers are typically displayed. If you have access to the backend, check configuration files or database for version metadata.Affected if The installed version is lower than 23.03.16
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Locate user input fields that store and display dataBrowse the UBYS application and identify all forms, profile fields, message boards, or data entry points where users can submit content that is stored and then displayed back to other users.Affected if User-submitted data is rendered in the browser without visible sanitization indicators (such as HTML entities replacing special characters)
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Test for output encoding in displayed contentSubmit a test payload containing HTML/JavaScript characters (e.g., <script>alert('test')</script> or <img src=x onerror=alert(1)>) in a user input field, then view that content as a different user. Inspect the page source to see if characters are encoded.Affected if The submitted script tags or event handlers execute as JavaScript rather than being rendered as harmless text or escaped entities
Your UBYS installation is affected if the version is below 23.03.16 and user-supplied content can contain and execute malicious JavaScript when viewed by other users.
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.
dbcve · scoped23.03.16
Upgrade to UBYS version 23.03.16 or later. Additionally, implement proper input validation and output encoding for all user-supplied data before rendering in the web page.
23.03.16
- Contact the UBYS vendor or Izmir Katip Celebi University IT department to obtain the version 23.03.16 update
- Verify the current installed version of UBYS before applying the update
- Apply the version 23.03.16 update following the vendor's standard upgrade procedure
- After upgrade, validate that the XSS vulnerability is remediated by testing input fields for proper sanitization
- Document the upgrade in the system change management log
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 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 $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-0320 — 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-2023-0320 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
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