CVE-2026-22504
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 ThemeREX ProLingua prolingua allows PHP Local File Inclusion.This issue affects ProLingua: from n/a through <= 1.1.12.
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 confidenceThis is a PHP Local File Inclusion (LFI) vulnerability in the ThemeREX ProLingua WordPress theme (versions <= 1.1.12). The application improperly validates filenames used in include/require statements, allowing attackers to manipulate path parameters to include arbitrary local PHP files, potentially leading to remote code execution.
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
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/PR:N/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.
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Confirm ProLingua theme is installedCheck the WordPress themes directory (wp-content/themes/) for a folder named 'prolingua' or 'trx_prolingua'. List directory contents to identify if the theme exists.Affected if The theme folder exists in the WordPress themes directory.
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Determine installed ProLingua versionOpen the theme's style.css file (wp-content/themes/prolingua/style.css or similar) and locate the 'Version:' header in the CSS comment block at the top. Alternatively, check functions.php for a version constant.Affected if The version number found is 1.1.12 or lower.
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Identify theme files handling includes or requiresSearch the theme directory for PHP files containing include, require, include_once, or require_once statements that use variables for file paths. Look for patterns like 'include($something)' or 'require($_GET[...])' without sanitization.Affected if Theme files contain include/require statements using unsanitized request parameters (e.g., $_GET, $_POST) to construct file paths.
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Locate vulnerable path parametersExamine theme PHP files for parameters used in include/require calls, particularly those related to language, template, or file loading functionality. Common parameter names include 'file', 'path', 'template', 'lang', or 'page'.Affected if The theme accepts a parameter (e.g., ?file=../) that can be manipulated to include arbitrary local files.
You are affected if the ProLingua theme is installed with version 1.1.12 or lower AND your server exposes a parameter that allows path manipulation in include/require statements without validation.
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 dataUpdate ProLingua to the latest patched version; if no update is available, implement input validation to restrict include/require statements to allowed files, and deploy WAF rules to block directory traversal patterns (e.g., ../) in request parameters.
- Consultation3.0 h
- Implementation6.0 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 $3,984.
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Free · runs locallyCheck whether your project pulls in CVE-2026-22504 — 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-2026-22504 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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- Version or environment caveats, and links to real fixes
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