Wp MailsterWordPress extension · Wpmailster
CVE-2024-53804
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 · uneditedInsertion of Sensitive Information Into Sent Data vulnerability in brandtoss WP Mailster wp-mailster allows Retrieve Embedded Sensitive Data.This issue affects WP Mailster: from n/a through <= 1.8.16.0.
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 confidenceThe WP Mailster WordPress plugin versions through 1.8.16.0 contain an insertion of sensitive information vulnerability where sensitive data gets embedded in sent emails. This allows unauthorized users to potentially retrieve this embedded sensitive data from email content, representing a data exposure issue in the email sending functionality.
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
Wp MailsterWordPress extension
< 1.8.17CVSS 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
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 WP Mailster plugin versionNavigate to WordPress Admin > Plugins > Installed Plugins > WP Mailster, or check the version in the plugin's main PHP file (usually wp-content/plugins/wp-mailster/wp-mailster.php)Affected if The installed version is less than 1.8.17 (e.g., 1.8.16.0 or earlier)
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Review outgoing email templatesIn WordPress Admin, go to WP Mailster settings > Templates (or similar email template configuration area) and inspect all email templates for hardcoded sensitive data such as passwords, API keys, database credentials, or internal system pathsAffected if Any template contains sensitive information that should not be included in outgoing emails
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Examine email logs for data exposureCheck WP Mailster email logs (typically found in plugin settings or WordPress debug logs) for outgoing emails and verify that no sensitive configuration values, credentials, or internal paths appear in the email body or headersAffected if Email logs show sensitive data embedded in sent email content
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Inspect plugin configuration filesReview the wp-mailster-config.php file or similar configuration files in the plugin directory for any stored sensitive values that could be inadvertently included in email generationAffected if Configuration contains sensitive data that gets passed to email templates
You are affected if the WP Mailster version is below 1.8.17 AND sensitive data is found in email templates, logs, or outgoing email content.
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 · scoped1.8.17
Update WP Mailster to the latest patched version once available, and audit email templates and configurations to identify and remove any sensitive information that may be inadvertently included in outgoing emails.
WP Mailster 1.8.17
- Backup your WordPress site and database before making any changes
- Navigate to WordPress admin dashboard > Plugins
- Locate WP Mailster in the plugins list
- Click 'Update now' on WP Mailster if an update is available, or manually upload WP Mailster version 1.8.17
- Verify the plugin version after update to confirm version 1.8.17 is installed
- Test that email mailing functionality continues to work properly
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Wp Mailster
Scoped from the published advisory
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 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 $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-53804 — 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-2024-53804 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