CVE-2025-26916
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 Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in Pixflow Massive Dynamic massive-dynamic.This issue affects Massive Dynamic: from n/a through <= 8.2.
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 a Remote File Inclusion (RFI) vulnerability in the Pixflow Massive Dynamic WordPress theme. The vulnerability allows remote attackers to include and execute arbitrary files (remote or local) through improper control of filenames in PHP include/require statements, potentially leading to complete system compromise.
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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/PR:N/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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Confirm Massive Dynamic theme is installedNavigate to wp-content/themes/ or check via WordPress admin Appearance > Themes to see if 'Massive Dynamic' is presentAffected if The Massive Dynamic theme by Pixflow is active or installed on the WordPress site
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Determine the theme versionCheck the style.css file in the theme directory for the 'Version:' header, or look in theme.json, or check any version file included with the themeAffected if The installed version cannot be determined or falls within any vulnerable version range for this theme
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Identify vulnerable include/require patternsSearch theme PHP files for include, include_once, require, or require_once statements that use variables in the file path without proper validation (e.g., include($_GET['file']) or include($some_variable) where the variable originates from user input)Affected if PHP files contain include/require statements that incorporate unsanitized user input into file paths
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Check for signs of remote file inclusionReview server access logs for suspicious requests containing http://, https://, or ../ in query parameters that may be targeting the vulnerable include/require functionalityAffected if Log evidence shows attempts to include remote URLs or traverse directories via URL parameters pointing to theme files
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Inspect for webshells or backdoorsExamine theme directory for newly created PHP files with suspicious names, encoded content, or base64 strings; compare current files against a known clean backupAffected if Unexpected PHP files exist in the theme directory or files have been modified from their expected content
A user is affected if the Massive Dynamic theme is installed and its PHP code contains include/require statements that allow uncontrolled file paths to be specified via user input, enabling remote file inclusion.
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 · scopedImmediately restrict access to or disable the vulnerable theme functionality; implement input validation/sanitization on all include/require parameter inputs; deploy WAF rules to block malicious file inclusion patterns; investigate for signs of exploitation.
Latest version of Massive Dynamic (version > 8.2)
- Check current Massive Dynamic theme version in WordPress dashboard under Appearance > Themes
- Navigate to Pixflow official website or WordPress theme repository to download the latest version
- Backup the entire WordPress site including database and files
- Deactivate the current Massive Dynamic theme
- Delete the current Massive Dynamic theme files
- Upload and install the latest version of Massive Dynamic theme
- Reactivate the theme
- Verify the site functionality and frontend rendering
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 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 $4,544.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-26916 — 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-2025-26916 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