CVE-2025-62016
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 · uneditedUnrestricted Upload of File with Dangerous Type vulnerability in hogash KALLYAS kallyas.This issue affects KALLYAS: from n/a through <= 4.22.0.
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 confidenceUnrestricted file upload vulnerability in the KALLYAS WordPress theme allows attackers to upload dangerous file types (likely executables like PHP files) without proper validation. This critical flaw (CVSS 9.9) enables remote code execution on the affected WordPress server.
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
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/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 if KALLYAS theme is installedNavigate to wp-content/themes/ in your WordPress installation directory and check for a folder named 'kallyas'. Alternatively, log into WordPress admin and go to Appearance > Themes to list installed themes.Affected if The KALLYAS theme folder exists in the themes directory or is listed in WordPress admin themes.
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Determine the installed KALLYAS theme versionCheck the style.css file inside the kallyas theme folder for the 'Version:' header, or look for a version.php file in the theme directory. Open the file and locate the version number.Affected if The version number cannot be determined or is lower than the fixed version provided in security advisories.
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Locate the file upload functionalitySearch for PHP files handling file uploads within the KALLYAS theme directory, particularly in folders like 'php', 'includes', or 'lib'. Look for functions referencing 'move_uploaded_file', 'wp_handle_upload', or form handlers accepting file inputs.Affected if PHP files handling file uploads exist within the KALLYAS theme folder.
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Inspect the uploads directory configurationCheck wp-content/uploads/ and its subdirectories. Look for .htaccess files and server configuration (nginx.conf or Apache vhost) to see if script execution is restricted. Inspect the directory for any .php, .phtml, or other executable files that should not be present.Affected if The uploads directory permits PHP file execution or contains unexpected executable files.
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Review server-side file type validationExamine the upload handling code found in Step 3. Look for MIME type checks, file extension allowlists, or validation functions. Determine if the code accepts file types without proper server-side verification.Affected if The upload handler lacks MIME type verification or does not use an allowlist for permitted file extensions.
You are affected if the KALLYAS theme is installed with a vulnerable version that contains unrestricted file upload handling without proper validation, allowing executable files to be uploaded to web-accessible directories.
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 dataImplement strict server-side file type validation using MIME type verification and file extension allowlists, move uploaded files outside web-accessible directories, and disable script execution in upload directories.
- 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.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-62016 — 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-2025-62016 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