CVE-2025-57899
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 AresIT WP Compress wp-compress-image-optimizer allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects WP Compress: from n/a through <= 6.50.54.
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 confidenceMissing authorization vulnerability in the WP Compress image optimizer WordPress plugin allows users to access functionality that should be restricted by access control lists. The plugin fails to properly validate user permissions before executing sensitive operations, potentially enabling unauthenticated or low-privileged users to manipulate image compression settings or access 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
- 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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Confirm WP Compress plugin is installedLocate the plugin directory at wp-content/plugins/wp-compress-image-optimizer/ or check via WordPress admin under Plugins > Installed Plugins. Verify the folder or plugin entry exists.Affected if The plugin folder or entry exists in the WordPress installation.
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Determine installed plugin versionOpen the main plugin file (usually wp-compress-image-optimizer.php) and locate the version comment at the top, or view the plugin details in WordPress admin plugins list.Affected if The version number is below 6.50.54, or the version cannot be determined while the plugin is active.
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Verify plugin is activeCheck WordPress admin under Plugins > Installed Plugins; the plugin status should show as 'Active' or inspect the wp_options table for the active_plugins option.Affected if The plugin is currently activated on the site.
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Test for unauthenticated endpoint access (optional)Send a request to the plugin AJAX endpoint (commonly /wp-admin/admin-ajax.php?action=wpcompress...) without providing valid authentication cookies or user credentials.Affected if The endpoint responds without returning a permission error or 401/403 status.
A site is affected if the WP Compress plugin is active and the installed version is below 6.50.54 (or the version cannot be verified), potentially allowing unauthorized users to access restricted functionality.
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 dataUpdate the plugin to a patched version > 6.50.54 when available. Until then, restrict access to the plugin endpoints via web server configuration or disable the plugin if unauthorized access is observed.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 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 $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-57899 — 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-2025-57899 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
- No spam, self-promotion, credentials, or personal data