CVE-2025-39483
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 Control of Generation of Code ('Code Injection') vulnerability in imithemes Eventer eventer allows Code Injection.This issue affects Eventer: from n/a through < 3.9.9.1.
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 confidenceThe Eventer plugin by imithemes contains a code injection vulnerability that allows attackers to inject malicious code into the application. This improper control of code generation could enable remote code execution on the affected WordPress site.
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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
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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Locate the Eventer plugin installationCheck the WordPress plugins directory (wp-content/plugins/) or view installed plugins in WordPress admin under Plugins > Installed Plugins for 'Eventer' or 'Eventer - All In One Event Calendar' by imithemesAffected if Eventer plugin is present in the installation
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Identify the installed versionIn WordPress admin, click on the Eventer plugin to view its details, or check the main plugin file (e.g., eventer.php) for the 'Version:' header comment, or query via WP-CLI: wp plugin list --name=eventerAffected if Version cannot be determined or is below 3.9.9.1
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Compare against the fixed versionCompare the installed version number to 3.9.9.1 using standard version comparisonAffected if Installed version is lower than 3.9.9.1 (e.g., 3.9.9, 3.9.8, 3.8.x, etc.)
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Verify plugin is activeIn WordPress admin under Plugins > Installed Plugins, confirm the Eventer plugin is currently activatedAffected if Plugin is activated and version is below 3.9.9.1
The environment is affected if the Eventer plugin by imithemes is installed, activated, and running a version lower than 3.9.9.1.
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 the Eventer plugin to version 3.9.9.1 or later to remediate this vulnerability. Review access controls and monitor for suspicious activity until the patch is applied.
3.9.9.1 or higher
- 1. Backup your WordPress site before making any changes
- 2. Navigate to the WordPress admin dashboard
- 3. Go to Plugins > Installed Plugins
- 4. Find the Eventer plugin by imithemes
- 5. If an update is available, click 'Update Now' to upgrade to version 3.9.9.1 or later
- 6. Alternatively, download the latest version (3.9.9.1 or higher) from the official WordPress plugin repository or imithemes website
- 7. Deactivate and delete the old plugin version if automatic update doesn't work, then install the new version
- 8. Verify the updated version number in the Plugins section after updating
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-39483 — 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-2025-39483 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
- No spam, self-promotion, credentials, or personal data