CVE-2025-6720

Vchasno Kasa <= 1.0.3 - Unauthenticated Log File Clearing

2025-07-18 17:11

Strategic Overview

Status: Patched in 1.0.4
Affected Plugin: MORKVA Vchasno Kasa Integration
Affected Version: <= 1.0.3
CVSS: 5.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2025-6720

View all MORKVA Vchasno Kasa Integration vulnerabilities

At a glance

CVE-2025-6720 is a medium-severity Missing Authorization vulnerability in the MORKVA Vchasno Kasa Integration WordPress plugin, affecting versions <= 1.0.3. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.0.4; sites on affected versions should update now. Disclosed July 2025, reported by Poli.

Vulnerability Overview

The 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 Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-862: Missing Authorization

MORKVA Vchasno Kasa Integration <= 1.0.3 carries this weakness at clear_all_log(), and reaching it takes no account at all. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For MORKVA Vchasno Kasa Integration the fix is 1.0.4: builds <= 1.0.3 are affected, anything from 1.0.4 onward is not.

Remediation

Update to version 1.0.4, or a newer patched version

How does WordSec protect against this?

This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: MORKVA Vchasno Kasa Integration 1.0.4 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2025-6720 https://www.wordfence.com/threat-intel/vulnerabilities/id/cd03483a-f46c-4e17-8b58-df87b0ad7fa3 https://nvd.nist.gov/vuln/detail/CVE-2025-6720

Related records

Same weakness class

5.3CVE-2025-6721: Vchasno Kasa Unauthenticated Invoice GenerationCVE-2025-6721

CVSS Vector

5.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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