CVE-2026-54803
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 · uneditedSubscriber Privilege Escalation in SMS Alert Order Notifications <= 3.9.4 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 confidenceThe SMS Alert Order Notifications WordPress plugin versions 3.9.4 and below contains a privilege escalation vulnerability allowing authenticated users with subscriber-level access to elevate their privileges to administrative levels, likely through improper capability validation in the order notification processing.
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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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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Confirm the SMS Alert plugin is installedNavigate to WordPress admin > Plugins and look for 'SMS Alert Order Notifications' or inspect the plugin directory /wp-content/plugins/ for folders containing 'sms-alert' or similar namingAffected if The plugin is present in the plugins directory
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Identify the installed plugin versionCheck the plugin header in the main plugin file (typically /wp-content/plugins/[plugin-folder]/sms-alert.php or similar) for the 'Version:' field, or view the plugin details in WordPress Plugins admin pageAffected if The version listed is 3.9.4 or lower
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Verify the order notification feature is activeCheck WordPress options table for plugin settings, or inspect /wp-admin/admin.php?page=sms-alert-settings for active notification triggers related to ordersAffected if Order notification processing is enabled and configured to trigger on order events
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Confirm subscriber-level accounts existIn WordPress admin go to Users > All Users and check for users with the 'Subscriber' role, or query the wp_usermeta table for wp_capabilities containing 'subscriber'Affected if Any user accounts with subscriber role exist on the site
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Check current role capability configurationInspect wp_options for wp_user_roles or review Roles under Users > Users in admin to verify subscriber role permissions, specifically looking for capabilities beyond standard subscriber accessAffected if Subscriber role has been granted elevated capabilities or the plugin adds custom capabilities to low-privilege roles
Your environment is affected if the SMS Alert Order Notifications plugin is installed at version 3.9.4 or below and the order notification feature is active, allowing subscriber-level users to potentially escalate privileges through the plugin's notification processing.
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 dataUpgrade to version greater than 3.9.4 immediately. If no patched version is available, disable the plugin and implement additional access controls at the server level to restrict subscriber role permissions.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-54803 — 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-2026-54803 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