CVE-2023-5378
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 Input Validation vulnerability in MegaBIP and already unsupported SmodBIP software allows for Stored XSS.This issue affects SmodBIP in all versions and MegaBIP in versions up to 4.36.2. MegaBIP 5.08 was tested and is not vulnerable. A precise range of vulnerable versions remains unknown.
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 XSS vulnerability in MegaBIP (versions up to 4.36.2) and SmodBIP (all versions) due to improper input validation. Attackers can inject malicious scripts into input fields that get stored and executed in the browsers of users who view the compromised 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<= 4.36.2<= 2.21CVSS 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 the installed productInspect the application or check the software inventory to determine if MegaBIP or SmodBIP is deployed in your environmentAffected if The product is MegaBIP version 4.36.2 or lower, or SmodBIP version 2.21 or lower
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Determine the installed versionCheck the application version number through the admin interface, About page, or by inspecting version files in the installation directoryAffected if The version is <= 4.36.2 for MegaBIP or <= 2.21 for SmodBIP
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Verify user input functionality is accessibleCheck if the application exposes public-facing input forms (such as user registration, comment submission, content editing, or profile fields) that accept user-supplied dataAffected if User input forms are available and accessible to unauthenticated or low-privilege users
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Inspect stored content handlingReview database records or application logs to see if user-submitted content is stored and later rendered to other users without sanitizationAffected if User-generated content is stored in the database and displayed back to users without proper output encoding
You are affected if MegaBIP version 4.36.2 or lower, or SmodBIP version 2.21 or lower is installed AND the application accepts and displays user-supplied input to 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 · scopedUpgrade MegaBIP to version 5.08 or later. For unsupported SmodBIP, implement input sanitization/validation at the application layer or migrate to a supported solution.
MegaBIP 5.08 or later
- Upgrade MegaBIP from any version <= 4.36.2 to version 5.08 or later (5.08 is confirmed fixed)
- Note: SmodBIP is unsupported and has no available fix; consider migrating to MegaBIP or another supported solution
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,968.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-5378 — 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-2023-5378 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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