CVE-2026-40038
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 · uneditedPachno 1.0.6 contains a stored cross-site scripting vulnerability that allows attackers to execute arbitrary HTML and script code by injecting malicious payloads into POST parameters. Attackers can inject scripts through the value, comment_body, article_content, description, and message parameters across multiple controllers, which are stored in the database and executed in users' browser sessions due to improper sanitization via Request::getRawParameter() or Request::getParameter() calls.
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 confidencePachno 1.0.6 suffers from a stored XSS vulnerability where malicious scripts can be injected via POST parameters (value, comment_body, article_content, description, message) across multiple controllers. The vulnerability stems from improper use of Request::getRawParameter() which bypasses sanitization, allowing stored payloads to execute in users' browsers.
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
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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.
-
Identify Pachno installationLocate the Pachno installation in the environment. Check the web root for Pachno core files (index.php, configuration directories). Confirm the application is indeed Pachno and not another PHP application.Affected if Pachno is present in the environment
-
Verify installed versionDetermine the exact version of Pachno installed. Look for version files, about pages, or the changelog file within the Pachno installation directory.Affected if The installed version is 1.0.6 or falls within the affected range
-
Identify vulnerable POST parameter usageSearch the codebase for controllers that process POST parameters named: value, comment_body, article_content, description, message. Examine the request handling code in those controllers.Affected if The application accepts and processes any of these five POST parameters without sanitization
-
Check for unsafe getRawParameter usageSearch the codebase for occurrences of Request::getRawParameter() being called with the vulnerable parameters. Review the controller methods that handle form submissions for these parameters.Affected if getRawParameter() is used to retrieve any of the vulnerable POST parameters (value, comment_body, article_content, description, message)
-
Inspect output encoding in viewsReview the templates/views where these POST parameters are rendered in HTML responses. Check whether contextual output encoding (HTML escaping) is applied before displaying user-supplied data.Affected if User input from these parameters is rendered in HTML without proper output encoding
If Pachno 1.0.6 is running and the vulnerable POST parameters are processed using getRawParameter() without output encoding, the system is affected by this stored XSS vulnerability.
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 proper input sanitization and output encoding for all user-supplied POST parameters. Replace getRawParameter() calls with sanitized equivalents or add contextual output encoding before rendering user data in HTML responses.
- Consultation4.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,040.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-40038 — 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-2026-40038 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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