CVE-2025-6720
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 · uneditedThe Vchasno Kasa plugin for WordPress is vulnerable to unauthorized loss of data due to a missing capability check on the clear_all_log() function in all versions up to, and including, 1.0.3. This makes it possible for unauthenticated attackers to clear log files.
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 · high confidenceThe Vchasno Kasa WordPress plugin is vulnerable to an IDOR/authorization bypass due to a missing capability check on the clear_all_log() function, allowing unauthenticated attackers to delete all log files by directly invoking the function.
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
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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.
-
Verify Vchasno Kasa plugin is installedLocate the plugin in the WordPress plugins directory (typically wp-content/plugins/) and confirm the vchasno-kasa or similar named plugin folder existsAffected if The plugin folder is present on the server
-
Determine installed plugin versionOpen the main plugin PHP file and check the Version header in the plugin comment block, or look for a version constant defined in the pluginAffected if Version is earlier than 1.0.4 (the fixed release)
-
Locate the clear_all_log functionSearch the plugin source code for the function named clear_all_log or clear_all_logsAffected if The function exists in the plugin code
-
Inspect the function for authorization checkExamine the clear_all_log function definition to determine if it includes a capability check such as current_user_can() before executing the delete operationAffected if The function executes without any current_user_can() or similar authorization check, allowing unauthenticated access
-
Check if log deletion is possible via direct invocationAttempt to access the function endpoint directly (e.g., via admin-ajax.php or direct URL call) without authentication to confirm the lack of authorization enforcementAffected if The function can be invoked without authentication and without any capability verification
User is affected if the Vchasno Kasa plugin is installed with a version earlier than 1.0.4 and the clear_all_log function lacks a capability check, allowing unauthenticated log deletion.
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 · scopedUpdate to version 1.0.4 or later which includes proper authorization checks; alternatively, disable the plugin until the patch can be applied.
Version 1.0.4 or later
- Log in to the WordPress admin dashboard
- Navigate to Plugins > Installed Plugins
- Locate the 'Vchasno Kasa' plugin
- Check if an update is available and update to version 1.0.4 or later
- Alternatively, you can update by going to Dashboard > Updates and selecting the Vchasno Kasa plugin
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 h
- Testing1.0 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 $1,424.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-6720 — 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-2025-6720 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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