Nexter ExtensionWordPress extension · Posimyth
CVE-2023-45750
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 · uneditedUnauth. Reflected Cross-Site Scripting (XSS) vulnerability in POSIMYTH Nexter Extension plugin <= 2.0.3 versions.
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 confidenceUnauthenticated reflected Cross-Site Scripting (XSS) vulnerability in the POSIMYTH Nexter Extension WordPress plugin versions 2.0.3 and below. Attackers can inject malicious JavaScript through unsanitized input parameters that get reflected back in the server response without proper encoding.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Nexter ExtensionWordPress extension
<= 2.0.3CVSS 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
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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.
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Identify plugin versionNavigate to WordPress admin > Plugins > Installed Plugins > Posimyth Nexter Extension, or inspect the main plugin PHP file (e.g., nexter-extension.php) and look for the 'Version:' header in the plugin documentation blockAffected if The displayed version is 2.0.3 or lower
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Verify plugin file version constantOpen the main plugin file in wp-content/plugins/ and locate the version definition (often in a constant or the plugin header comment)Affected if The version number returned is <= 2.0.3
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Check for unauthenticated parameter reflectionIdentify any frontend-facing forms, search fields, or URL parameters (GET/POST) that accept user input and are reflected in the response. Review the plugin code for lack of sanitization functions like esc_html(), esc_attr(), or wp_kses() on the input before outputAffected if User-supplied input is reflected in the HTTP response without proper HTML encoding or sanitization
If the Posimyth Nexter Extension version is 2.0.3 or lower AND the site exposes any frontend parameters that reflect user input without sanitization, the environment is affected by this reflected 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.
dbcve · scopedUpgrade to version 2.0.4 or later which contains the security patch. If unable to upgrade immediately, consider disabling the plugin until the fix can be applied.
Latest version available in WordPress plugin repository (version > 2.0.3)
- 1. Check the WordPress admin dashboard for available plugin updates
- 2. Navigate to Plugins > Installed Plugins
- 3. Locate the POSIMYTH Nexter Extension plugin
- 4. Update the plugin to the latest available version (any version above 2.0.3)
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Nexter Extension
Scoped from the published advisory
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,272.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-45750 — 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-2023-45750 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