CVE-2026-54805
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 Falang multilanguage <= 1.4.2 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 confidenceInsufficient access control in Falang multilanguage plugin versions 1.4.2 and below allows authenticated users with subscriber-level privileges to escalate their permissions to higher privilege levels, likely through improper capability checks in administrative functions.
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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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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Verify Falang multilanguage plugin is installedLocate the Falang plugin directory in your CMS plugins folder or check the plugin list in the administrative interfaceAffected if The plugin files are present on the system
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Check installed plugin versionView the plugin details or version file within the Falang plugin directory and compare to 1.4.2Affected if The installed version is 1.4.2 or lower
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Determine if user registration is enabledCheck the site registration settings in the CMS configuration to see if new user signups are permittedAffected if Registration allows new user accounts to be created
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Identify subscriber-level accountsReview the list of registered users and check for accounts assigned the subscriber roleAffected if Any subscriber-level user accounts exist on the site
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Verify role capability enforcementInspect administrative functions that handle permission checks within the Falang plugin, comparing against expected WordPress capability requirements for the operations being performedAffected if Administrative functions do not properly validate that the requester has elevated privileges beyond subscriber level
You are affected if the Falang multilanguage plugin is installed at version 1.4.2 or below and your site permits subscriber-level user accounts to exist.
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 · scopedUpgrade Falang multilanguage to the latest version immediately. Until patched, disable the plugin or restrict site registration to prevent untrusted users from obtaining subscriber accounts.
Upgrade to Falang multilanguage version newer than 1.4.2 (check wordpress.org for the latest stable release)
- 1. Log in to the WordPress admin dashboard
- 2. Navigate to Plugins > Installed Plugins
- 3. Locate the Falang multilanguage plugin
- 4. Check the current installed version (should be <= 1.4.2)
- 5. Click 'Update Now' if an update is available, or download the latest version from wordpress.org
- 6. Verify the updated version is installed (should be > 1.4.2
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-54805 — 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-2026-54805 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