CVE-2025-39358
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 · uneditedDeserialization of Untrusted Data vulnerability in teastudio.pl WP Posts Carousel wp-posts-carousel allows Object Injection.This issue affects WP Posts Carousel: from n/a through <= 1.3.12.
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 confidenceDeserialization of Untrusted Data vulnerability in the WP Posts Carousel WordPress plugin allows attackers to inject malicious PHP objects via insecure use of unserialize(), potentially leading to remote code execution if vulnerable classes or magic methods exist in the WordPress environment.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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.
-
Confirm WP Posts Carousel plugin is installedNavigate to WordPress admin > Plugins, or inspect /wp-content/plugins/ directory for the wp-posts-carousel folderAffected if The plugin is not installed on the WordPress site
-
Identify the installed plugin versionCheck the plugin main PHP file header (usually wp-posts-carousel.php) for the 'Version' comment, or view the version in the WordPress plugin repository pageAffected if The version cannot be determined or is older than the patched release
-
Locate the vulnerable unserialize() callInspect the plugin PHP files for calls to unserialize() function, particularly where user-supplied input (GET/POST parameters, AJAX requests, or database values) is passed directly to unserialize()Affected if The plugin code contains unserialize() calls that process untrusted input without validation
-
Check for exploitable PHP classes in the environmentReview the plugin and other active plugins/themes for classes with magic methods (__wakeup, __destruct, __toString, __call) that could be chained for POP gadget attacksAffected if Vulnerable magic methods exist that could be triggered during deserialization chain exploitation
-
Verify the attack surface is reachableTest if the deserialization sink is reachable without authentication (e.g., via AJAX endpoints, public-facing hooks, or admin actions) by reviewing the code flow from input entry points to the unserialize() callAffected if The vulnerable code path is exposed to unauthenticated or low-privilege users
A site is affected if WP Posts Carousel is installed, contains insecure unserialize() handling of untrusted input, and has exploitable PHP classes or magic methods present that could enable remote code execution.
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 WP Posts Carousel to the latest version; if unavailable, disable the plugin and implement input validation to prevent untrusted data from reaching deserialization functions.
- Consultation3.0 h
- Implementation6.0 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 $4,224.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-39358 — 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-2025-39358 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