Welcart E CommerceWordPress extension · Welcart
CVE-2025-27130
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 · uneditedWelcart e-Commerce 2.11.6 and earlier versions contains an untrusted data deserialization vulnerability. If this vulnerability is exploited, arbitrary code may be executed by a remote unauthenticated attacker who can access websites created using the product.
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 confidenceWelcart e-Commerce versions 2.11.6 and earlier contain an untrusted data deserialization vulnerability. This allows remote unauthenticated attackers to send specially crafted serialized data to vulnerable endpoints, potentially triggering arbitrary code execution through PHP object injection or similar deserialization attacks.
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
Welcart E CommerceWordPress extension
<= 2.11.6CVSS 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
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 Welcart e-Commerce versionLocate the version file or header in the Welcart installation. Common paths include the plugin header in main plugin file, a version constant, or the WordPress plugin metadata. Check the plugin admin dashboard for the installed version number.Affected if The installed version is 2.11.6 or earlier.
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Locate PHP files with deserialization functionsSearch the Welcart plugin directory for files containing 'unserialize' function calls. In WordPress environments, this is typically in wp-content/plugins/usc-e-shop/. Use grep or similar: grep -r "unserialize" /path/to/usc-e-shop/Affected if Any unserialize() call processes data from external sources without validation.
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Inspect endpoints accepting serialized inputReview PHP files that handle HTTP request parameters (GET, POST, cookies). Look for code paths where unserialize() is called on user-controlled input such as $_POST, $_GET, or $_COOKIE values.Affected if The application deserializes data from unauthenticated HTTP requests without sanitization.
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Verify if vulnerable endpoints are accessibleTest whether public-facing endpoints that call unserialize() on request data are reachable. Common patterns include AJAX handlers or API endpoints that accept serialized objects.Affected if Unserialize operations on unauthenticated request data are reachable from the network.
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Check for known unsafe deserialization patternsExamine the identified unserialize() calls for absence of safety measures such as json_decode instead, input validation, or use of safeunserialize functions.Affected if The code uses unserialize() on raw request data without whitelisting classes or validating input.
A user is affected if Welcart e-Commerce version is 2.11.6 or earlier and the application processes serialized PHP data from unauthenticated HTTP requests through unsafe unserialize() calls.
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 · scopedUpdate Welcart e-Commerce to version 2.11.7 or later. If immediate patching is not possible, implement a WAF rule to block serialized data in HTTP requests and review code for unsafe unserialize() calls.
Latest Welcart E Commerce version (newer than 2.11.6)
- 1. Back up the current Welcart E Commerce installation and database before making any changes
- 2. Visit the official Welcart website (www.welcart.com) or the WordPress plugin repository to obtain the latest version
- 3. Update Welcart E Commerce to the latest available version (newer than 2.11.6)
- 4. Verify the update was successful by checking the plugin version in WordPress admin
- 5. Test critical e-commerce functions (product display, cart, checkout, payment processing) to ensure proper operation
- 6. Monitor for any unusual behavior or errors following the update
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Welcart E Commerce
Scoped from the published advisory
- Consultation2.0 h
- Implementation4.0 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 $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-27130 — 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-2025-27130 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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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