CVE-2025-29893
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 · uneditedAn SQL injection vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to execute unauthorized code or commands. We have already fixed the vulnerability in the following version: Qsync Central 4.5.0.7 ( 2025/04/23 ) and later
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 · high confidenceSQL injection vulnerability in Qsync Central allows a remote attacker who has obtained a valid user account to inject malicious SQL queries, potentially leading to unauthorized code or command execution on the underlying system.
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>= 4.5.0.3, < 4.5.0.7CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
-
Identify Qsync Central versionLocate and inspect the installed version of Qsync Central on the system using the QNAP admin interface or command-line tools provided by QNAP.Affected if The installed version is 4.5.0.3, 4.5.0.4, 4.5.0.5, or 4.5.0.6 (any version >= 4.5.0.3 but < 4.5.0.7).
-
Confirm Qsync Central is runningVerify that the Qsync Central service is actively running on the QNAP device.Affected if Qsync Central is installed and running.
-
Check network exposureDetermine if the QNAP device hosting Qsync Central is accessible over the network, particularly via HTTP/HTTPS ports used by Qsync Central.Affected if Qsync Central is reachable from network locations where untrusted users could potentially obtain valid credentials.
-
Review user account existenceExamine the user accounts configured in Qsync Central or on the QNAP system, noting whether any non-administrator or standard user accounts exist.Affected if There are valid user accounts in Qsync Central that could be used by an attacker to exploit the SQL injection flaw.
A user is affected if Qsync Central version 4.5.0.3 through 4.5.0.6 is installed and running with accessible user accounts.
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 · scoped4.5.0.7
Update Qsync Central to version 4.5.0.7 or later. Since the exploit requires a valid user account, also enforce strong password policies, implement multi-factor authentication, and monitor for credential compromise.
Qsync Central 4.5.0.7
- Back up the current Qsync Central configuration and data before proceeding with the upgrade
- Download Qsync Central version 4.5.0.7 or later from the official QNAP download center (www.qnap.com)
- Apply the upgrade to Qsync Central through the QNAP admin interface or via the downloaded installation package
- After upgrade completion, verify the installed version shows 4.5.0.7 or later in the Qsync Central administration panel
- Confirm that Qsync Central services are running normally and all sync functions operate as expected
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation3.0 h
- Testing3.0 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 $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-29893 — 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-2025-29893 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