CVE-2026-48871
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 · uneditedUnauthenticated Cross Site Scripting (XSS) in MW WP Form <= 5.1.3 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 · moderate confidenceUnauthenticated Cross Site Scripting (XSS) vulnerability in MW WP Form WordPress plugin affecting versions 5.1.3 and below. An attacker without authentication can inject malicious scripts through form inputs that are not properly sanitized, potentially leading to session hijacking or credential theft.
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
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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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Locate MW WP Form plugin versionIn WordPress admin, go to Plugins > Installed Plugins > MW WP Form and read the version number displayed. Alternatively, check the plugin main file header via file browser or wp-cli: grep -i 'Version:' wp-content/plugins/mw-wp-form/mw-wp-form.phpAffected if The displayed version is 5.1.3 or lower
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Verify MW WP Form plugin is activeIn WordPress admin, go to Plugins > Installed Plugins and confirm that MW WP Form shows as 'Active' under the plugin statusAffected if Plugin status shows as Active
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Identify active form configurationsIn WordPress admin, go to MW WP Form in the sidebar and review the list of created forms. Note any forms that are published and have not been trashed or disabledAffected if One or more MW WP Form forms exist and are published (not trashed)
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Confirm form input handling is in useReview the form settings for any published forms and verify that the form accepts user input through fields such as text inputs, textareas, or other input types that could accept malicious script contentAffected if Forms accept user input and input fields are not disabled or set to read-only
You are affected if MW WP Form plugin version is 5.1.3 or below, the plugin is active, and at least one published form accepts user input.
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 · scopedUpdate MW WP Form plugin to the latest version (greater than 5.1.3) which contains the patched version of the plugin. If immediate update is not possible, consider disabling the plugin or adding WAF rules to block XSS attack patterns.
Latest version of MW WP Form ( newer than 5.1.3 )
- Navigate to the WordPress plugin administration panel
- Locate MW WP Form in the installed plugins list
- Check the current installed version to confirm it is 5.1.3 or lower
- Update the plugin to the latest available version
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 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 $2,512.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-48871 — 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-2026-48871 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