CVE-2025-1186
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 · uneditedA vulnerability was found in dayrui XunRuiCMS up to 4.6.4. It has been declared as critical. This vulnerability affects unknown code of the file /Control/Api/Api.php. The manipulation of the argument thumb leads to deserialization. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
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 confidenceA critical deserialization vulnerability exists in dayrui XunRuiCMS up to v4.6.4. The thumb parameter in /Control/Api/Api.php accepts unsafe deserialized data without proper validation, allowing remote attackers to potentially execute arbitrary code via crafted PHP object injection payloads.
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<= 4.6.4CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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.
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Identify XunRuiCMS installationLocate the application by searching for core CMS directories or files containing 'xunruicms' or 'dayrui' naming patterns in the web rootAffected if The application is found and uses XunRuiCMS
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Determine installed versionCheck version.php, version.txt, or the admin panel About/System Info page for the version numberAffected if Version is 4.6.4 or lower (v4.6.4 is the latest affected version)
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Verify vulnerable file existsConfirm /Control/Api/Api.php exists in the web application directoryAffected if The file exists and is accessible via web requests
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Inspect thumb parameter handlingExamine the Api.php file for 'thumb' parameter processing and look for unserialize() calls handling this parameterAffected if The code contains unserialize() function applied to the thumb parameter without prior validation or sanitization
If XunRuiCMS version 4.6.4 or lower is installed and the Api.php file contains unsafe deserialization of the thumb parameter, the environment is affected by this CVE.
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 dataUpgrade to a patched version of XunRuiCMS if available; otherwise, implement strict input validation on the thumb parameter and disable untrusted deserialization functions at the application or WAF level.
- Consultation3.0 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 $4,800.
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Free · runs locallyCheck whether your project pulls in CVE-2025-1186 — 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-2025-1186 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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- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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