MailmunchWordPress extension
CVE-2024-31349
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 Input During Web Page Generation ('Cross-site Scripting') vulnerability in MailMunch MailMunch – Grow your Email List allows Stored XSS.This issue affects MailMunch – Grow your Email List: from n/a through 3.1.6.
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 confidenceA stored cross-site scripting (XSS) vulnerability exists in the MailMunch WordPress plugin (versions through 3.1.6). The vulnerability stems from improper neutralization of user-supplied input during web page generation, allowing malicious scripts to be persistently stored and executed when other users view affected content.
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
MailmunchWordPress extension
< 3.1.7CVSS 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
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/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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Check the installed MailMunch plugin versionLog into the WordPress admin dashboard and navigate to Plugins > Installed Plugins. Find MailMunch in the list and note the version number displayed. Alternatively, use WP-CLI: wp plugin list --name=mailmunch --format=tableAffected if The installed version is 3.1.6 or lower (any version before 3.1.7)
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Identify if MailMunch forms are active on the siteNavigate to MailMunch in the WordPress admin sidebar. Check if any email signup forms, popups, or landing pages have been created and published. Note the number and type of active forms.Affected if The plugin has active forms, popups, or landing pages that collect user input, as the XSS vulnerability affects user-supplied input during form submission
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Inspect stored form submissions for malicious scriptsAccess the WordPress database via phpMyAdmin or WP-CLI. Query the MailMunch-related tables (often prefixed with wp_mailmunch_ or similar) for any script tags or HTML in submitted data. Example SQL: SELECT * FROM wp_posts WHERE post_content LIKE '%<script%' OR post_content LIKE '%onerror=%';Affected if Any stored form submissions, subscriber data, or content fields contain unsanitized script tags, iframe elements, or event handlers like onerror/onload
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Review browser console for XSS errors when viewing MailMunch contentVisit any published MailMunch form, popup, or landing page in a web browser. Open the browser developer console (F12) and check for any script execution errors or injected scripts executing unexpectedly.Affected if Unexpected scripts execute or console shows errors related to injected JavaScript when viewing MailMunch-generated content
You are affected if the MailMunch plugin version is 3.1.6 or lower AND the plugin has active forms or landing pages that accept user input, as the stored XSS vulnerability allows malicious scripts to be persistently injected through these input points.
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 · scoped3.1.7
Update the MailMunch plugin to the latest version once available, which should include proper input sanitization and output encoding. Until then, restrict administrative access and validate that all user inputs are properly escaped before storage and display.
MailMunch plugin version 3.1.7 or later
- 1. Create a full backup of your WordPress site (database and files) before making any changes
- 2. Navigate to Plugins > Installed Plugins in your WordPress admin dashboard
- 3. Locate the MailMunch – Grow your Email List plugin
- 4. If an update is available, click 'Update Now' to upgrade to version 3.1.7 or later
- 5. Alternatively, you can manually download version 3.1.7 or latest stable version from the WordPress plugin repository and upload it via Plugins > Add New > Upload Plugin
- 6. After updating, verify the plugin is running version 3.1.7 or later in the Plugins list
- 7. Test that the email collection forms on your site are functioning correctly
- 8. Clear any site caches if you use caching plugins
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Mailmunch
Scoped from the published advisory
- Consultation2.0 h
- Implementation4.0 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 $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-31349 — 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-2024-31349 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
- No spam, self-promotion, credentials, or personal data