CVE-2025-30921
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 Special Elements used in an SQL Command ('SQL Injection') vulnerability in Tribulant Software Newsletters newsletters-lite allows SQL Injection.This issue affects Newsletters: from n/a through <= 4.9.9.7.
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 confidenceSQL Injection vulnerability in Tribulant Software Newsletters plugin (newsletters-lite) allows attackers to inject malicious SQL commands through unsanitized user input in SQL queries, affecting all versions up to 4.9.9.7.
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
- High
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- None
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/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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Identify the installed version of the newsletters-lite pluginAccess the WordPress plugin administration panel and locate the Tribulant Newsletters plugin in the installed plugins list. The version number is displayed next to the plugin name. Alternatively, check the plugin header in the main plugin file (typically newsletters-lite.php) for the 'Version' tag.Affected if The installed version is 4.9.9.7 or any earlier version (e.g., 4.9.9, 4.9.8, 4.8.0, etc.)
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Verify the plugin is active on the WordPress siteIn the WordPress admin dashboard, navigate to Plugins > Installed Plugins and confirm that the Tribulant Newsletters plugin shows as 'Active'. Only active plugins can process requests that trigger the vulnerable code paths.Affected if The plugin is installed and active, making the SQL injection accessible to attackers who can submit requests to the site.
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Identify any public-facing forms or features that accept user inputReview the newsletters plugin settings and published shortcodes. Look for subscription forms, subscriber management pages, import/export features, or any feature that accepts and processes user-submitted data that could be incorporated into SQL queries.Affected if Any feature accepting user input (such as email addresses, names, or subscriber search parameters) is in use, as these inputs are not sanitized before being used in dynamic SQL queries.
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Check server access logs for anomalous SQL-like patterns in request parametersExamine web server access logs (Apache, Nginx) for requests to pages running the newsletters plugin. Look for unusual characters in query parameters such as single quotes ('), UNION SELECT statements, or SQL comment sequences (--, #, /*) that may indicate exploitation attempts.
You are affected if the Tribulant Software Newsletters plugin (newsletters-lite) is installed at version 4.9.9.7 or any earlier version and is currently active on your WordPress site.
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 dataReplace dynamic SQL query construction with parameterized queries/prepared statements and implement proper input validation on all user-supplied parameters before database operations.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-30921 — 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-2025-30921 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