CVE-2024-23348
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 a-blog cms Ver.3.1.x series versions prior to Ver.3.1.7, Ver.3.0.x series versions prior to Ver.3.0.29, Ver.2.11.x series versions prior to Ver.2.11.58, Ver.2.10.x series versions prior to Ver.2.10.50, and Ver.2.9.0 and earlier allows a remote authenticated attacker to execute arbitrary JavaScript code by uploading a specially crafted SVG file.
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 confidenceThis is an XSS vulnerability in a-blog cms where improper input validation allows authenticated users to upload malicious SVG files containing embedded JavaScript. The CMS fails to sanitize SVG content during upload, enabling arbitrary JavaScript execution in the browsers of users who view the uploaded files.
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<= 2.9.0>= 2.10.0, < 2.10.50>= 2.11.0, < 2.11.58>= 3.0.0, < 3.0.29>= 3.1.0, < 3.1.7CVSS 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.
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Determine installed a-blog cms versionLocate the version file or admin panel version display. Check the main configuration file for the version string, typically found in the CMS root directory or admin dashboard under system information.Affected if The installed version falls within any of these ranges: <= 2.9.0, >= 2.10.0 and < 2.10.50, >= 2.11.0 and < 2.11.58, >= 3.0.0 and < 3.0.29, or >= 3.1.0 and < 3.1.7
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Check if file upload functionality is enabledAccess the CMS admin panel and navigate to the media upload or file upload settings. Look for any configuration that enables or disables the upload feature.Affected if File uploads are enabled and users with authenticated access can upload files to the media library
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Verify SVG file type is permitted for uploadIn the CMS admin panel, review the allowed file extensions or MIME types for uploads. Look for configuration settings that control which file types users can upload.Affected if SVG files (.svg extension) are explicitly allowed or not explicitly blocked in the upload configuration
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Inspect uploaded SVG files for sanitizationUpload a test SVG file containing a benign script tag (such as <script>alert(1)</script>) to the media library, then view the file in a browser. Alternatively, examine the SVG file directly after upload to see if script tags were stripped or encoded.Affected if The uploaded SVG file retains embedded script tags or JavaScript when accessed directly, indicating no server-side sanitization is being applied
You are affected if your a-blog cms version is in the vulnerable range AND file uploads are enabled with SVG support allowed and no sanitization is performed on uploaded SVG content.
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 · scoped2.10.502.11.583.0.29
Update a-blog cms to the fixed versions (3.1.7, 3.0.29, 2.11.58, 2.10.50 or later). Until updated, restrict or disable SVG file uploads and implement server-side SVG content sanitization.
Upgrade to the latest version in your respective branch: 2.10.50+, 2.11.58+, 3.0.29+, or 3.1.7+
- 1. Identify your current a-blog cms version by checking the admin console or version file
- 2. Based on your current version branch, upgrade to the minimum fixed version: For 2.9.x and earlier: upgrade to 2.10.50 or latest 2.x; For 2.10.x: upgrade to 2.10.50 or later; For 2.11.x: upgrade to 2.11.58 or later; For 3.0.x: upgrade to 3.0.29 or later; For 3.1.x: upgrade to 3.1.7 or later
- 3. After upgrading, verify that SVG file uploads are properly sanitized and prevent JavaScript execution
- 4. Test the SVG upload functionality to confirm the fix works correctly
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-23348 — 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-2024-23348 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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