CVE-2026-24530
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 · uneditedMissing Authorization vulnerability in sheepfish WebP Conversion webp-conversion allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WebP Conversion: from n/a through <= 2.2.
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 confidenceA missing authorization vulnerability in the sheepfish WebP Conversion plugin allows attackers to exploit incorrectly configured access control security levels. The plugin fails to properly validate user authorization before allowing access to certain functionality, potentially enabling unauthorized users to perform actions that should be restricted.
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
- None
- Integrity
- None
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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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Verify plugin installationCheck if the sheepfish WebP Conversion plugin is present in the WordPress plugins directory (wp-content/plugins) or listed in the WordPress admin plugins pageAffected if The plugin appears in the installed plugins list
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Determine installed versionRead the main plugin PHP file header or check the plugin admin panel to locate the version numberAffected if The version cannot be determined or has not been updated to include authorization fixes
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Review user role and permission settingsAccess the plugin settings page and examine any options related to user roles, permissions, or capability requirements for using conversion functionsAffected if The plugin allows anonymous users or subscribers to perform conversion operations without elevated permissions
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Test endpoint access without authenticationSend direct HTTP requests to plugin AJAX handlers or conversion endpoints (such as wp-admin/admin-ajax.php?action=sheepfish_webp_convert) using an unauthenticated browser session or curl without cookiesAffected if Conversion requests execute or return success responses without requiring login credentials
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Inspect capability checks in plugin codeExamine the main plugin PHP file for current_user_can() or similar authorization function calls around sensitive operations like image conversion or settings changesAffected if No capability checks are found before conversion or configuration functions, or checks are commented out
The environment is affected if the sheepfish WebP Conversion plugin is installed and does not enforce proper user authorization checks on its conversion or configuration endpoints.
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 proper authorization checks on all sensitive endpoints and functions within the plugin to ensure users have appropriate permissions before executing conversion or configuration operations.
- Consultation3.0 h
- Implementation5.0 h
- Testing3.0 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 $3,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-24530 — 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-2026-24530 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
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