CVE-2018-15511
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 · uneditedCross-site scripting (XSS) vulnerability in the 'Notification template' feature of totemomail 6.0.0 build 570 allows remote attackers to inject arbitrary web script or HTML.
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 confidenceStored cross-site scripting (XSS) vulnerability in totemomail's Notification template feature allows remote attackers to inject arbitrary JavaScript or HTML that executes when users view notifications. This is a classic input validation failure where user-supplied template content is rendered without proper sanitization.
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= 6.0.0CVSS 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:3.0/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 Totemomail installed versionCheck the application's about page, version info in the installation directory, or run 'totemomail --version' from the command line if availableAffected if The installed version is exactly 6.0.0
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Locate the Notification template configurationNavigate to the Totemomail admin console or configuration files and look for the Notification or Templates section, typically found under Settings > Notifications or similar admin pathsAffected if The Notification template feature is present and accessible in the admin interface
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Verify template content handlingAccess the Notification template editor and examine existing templates for any user-supplied content that may be rendered without encoding, check the template source for raw HTML or script tagsAffected if Templates contain unsanitized HTML, script tags, or event handler attributes in template fields
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Test for stored XSS injectionIf you have admin access, insert a benign XSS test payload like <script>alert('test')</script> into a notification template field and trigger a notification to be sent/viewedAffected if The payload executes as JavaScript when the notification is rendered, confirming the XSS vulnerability
You are affected if Totemomail version 6.0.0 is installed AND the Notification template feature is enabled with templates containing unsanitized user-controlled content that gets rendered without output encoding.
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 dataImplement input validation and output encoding/sanitization for all user-controllable content in the Notification template feature. Consider using a whitelist approach for allowed HTML tags and attributes.
- Consultation6.0 h
- Implementation12.0 h
- Testing10.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,928.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-15511 — 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-2018-15511 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
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