CVE-2026-54836
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 Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in YMC Filter allows SQL Injection. This issue affects YMC Filter: from n/a through 3.11.5.
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 confidenceSQL Injection vulnerability in YMC Filter plugin allows attackers to inject malicious SQL commands through unsanitized user inputs. The CVSS 9.3 score indicates critical severity with potential for full database compromise, including unauthorized data access, modification, or deletion.
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
- Changed
- Confidentiality
- High
- Integrity
- None
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
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 YMC Filter installationLocate the YMC Filter plugin/component in your system by searching for files named 'ymc-filter' or checking your plugin/component inventoryAffected if YMC Filter is not present in the system, the vulnerability does not apply
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Identify installed versionCheck the version file, header comment, or metadata of the YMC Filter installation (often in version.php, readme.txt, or plugin main file)Affected if The installed version cannot be determined or is unknown, making patch status unclear
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Audit input-handling codeReview PHP files in the YMC Filter directory for SQL query execution (SELECT, INSERT, UPDATE, DELETE) and trace how user input flows into these queries without prepared statements or escaping functionsAffected if Code contains SQL queries that incorporate request parameters ($_GET, $_POST, $_REQUEST) directly into queries without sanitization
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Identify exposed input fieldsTest all front-end forms and URL parameters provided by YMC Filter (such as search, filter, or sorting inputs) by injecting SQL syntax characters (single quote, UNION, OR 1=1) to observe application behaviorAffected if Input fields accept and process special SQL characters without sanitization or error handling, indicating unsanitized input is possible
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Check for parameterized queriesGrep the YMC Filter source code for usage of PDO prepared statements, mysqli_prepare, or equivalent parameterized query functionsAffected if No parameterized queries are found in SQL operations and raw SQL construction with user input is present
Your environment is affected if YMC Filter is installed and its input-handling code contains SQL queries that accept user-supplied input without sanitization or prepared statements.
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 YMC Filter to the latest version if available. If no patch exists, audit and parameterize all database queries, implement proper input validation, and apply output encoding to prevent SQL injection.
- 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.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-54836 — 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-2026-54836 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
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