CVE-2025-30843 – This SQL injection vulnerability in the setrios... (How to Fix)

📋 TL;DR

This SQL injection vulnerability in the setriosoft bizcalendar-web WordPress plugin allows attackers to execute arbitrary SQL commands on the database. It affects all versions up to 1.1.0.34, potentially compromising websites using this plugin.

💻 Affected Systems

Products:

setriosoft bizcalendar-web WordPress plugin

Versions: All versions up to and including 1.1.0.34

Operating Systems: Any OS running WordPress

Default Config Vulnerable: ⚠️ Yes

Notes: Affects WordPress installations with the bizcalendar-web plugin installed and activated

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:

Review the CVE details at NVD
Check vendor security advisories for your specific version
Test if the vulnerability is exploitable in your environment
Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise leading to data theft, data manipulation, or full system takeover via subsequent attacks

🟠

Likely Case

Unauthorized data access, modification, or deletion of database contents

🟢

If Mitigated

Limited impact with proper input validation and database permissions

🌐 Internet-Facing: HIGH - WordPress plugins are typically internet-facing and accessible to attackers

🏢 Internal Only: MEDIUM - Could still be exploited by internal threats or via compromised accounts

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

SQL injection typically requires some level of access or interaction with vulnerable endpoints

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 1.1.0.34

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/bizcalendar-web/vulnerability/wordpress-bizcalendar-web-plugin-1-1-0-34-sql-injection-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find 'bizcalendar-web' plugin
4. Click 'Update Now' if available
5. If no update available, deactivate and remove the plugin

🔧 Temporary Workarounds

Disable vulnerable plugin

WordPress

Temporarily deactivate the bizcalendar-web plugin until patched

wp plugin deactivate bizcalendar-web

Web Application Firewall (WAF)

all

Implement WAF rules to block SQL injection patterns

🧯 If You Can't Patch

Implement strict input validation and parameterized queries in custom code
Restrict database user permissions to minimum required access

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for bizcalendar-web version ≤1.1.0.34

Check Version:

wp plugin get bizcalendar-web --field=version

Verify Fix Applied:

Verify plugin version is >1.1.0.34 or plugin is removed

📡 Detection & Monitoring

Log Indicators:

Unusual SQL queries in database logs
Multiple failed login attempts
Unexpected plugin file modifications

Network Indicators:

Suspicious POST/GET requests to plugin endpoints
SQL error messages in HTTP responses

SIEM Query:

source="web_server" AND ("bizcalendar-web" OR "SQL syntax" OR "mysql_fetch")

📊 Metadata

CVE ID: CVE-2025-30843

CVSS v3 Score: 7.6 (HIGH)

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

CWE: CWE-89

EPSS Score: 0.21% exploit probability (43.6th percentile)

Published: March 27, 2025

Last Updated: March 27, 2025

🔗 References

https://patchstack.com/database/wordpress/plugin/bizcalendar-web/vulnerability/wordpress-bizcalendar-web-plugin-1-1-0-34-sql-injection-vulnerability?_s_id=cve

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