CVE-2023-41683
📋 TL;DR
This CVE describes a missing authorization vulnerability in the Pechenki TelSender WordPress plugin that allows attackers to bypass access controls. Attackers can exploit incorrectly configured security levels to perform unauthorized actions. This affects all TelSender plugin installations running versions up to and including 1.14.11.
💻 Affected Systems
- Pechenki TelSender WordPress Plugin
⚠️ 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.
- 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 compromise of the WordPress site through privilege escalation, allowing attackers to modify content, install malicious plugins, or gain administrative access.
Likely Case
Unauthorized access to plugin functionality, potentially allowing attackers to send unauthorized messages, modify plugin settings, or access restricted data.
If Mitigated
Minimal impact with proper access controls, authentication requirements, and network segmentation in place.
🎯 Exploit Status
Exploitation requires some level of access but can be performed by authenticated users with lower privileges than intended.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.14.12 or later
Vendor Advisory: https://patchstack.com/database/wordpress/plugin/telsender/vulnerability/wordpress-telsender-plugin-1-14-7-broken-access-control-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find TelSender plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete plugin, then install fresh version 1.14.12+ from WordPress repository.
🔧 Temporary Workarounds
Disable TelSender Plugin
allTemporarily disable the vulnerable plugin until patched version can be installed.
wp plugin deactivate telsender
Restrict Access via Web Application Firewall
allConfigure WAF rules to block unauthorized access to TelSender endpoints.
🧯 If You Can't Patch
- Implement strict access controls and principle of least privilege for all WordPress user accounts
- Monitor and audit all access to TelSender plugin functionality and endpoints
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins → TelSender version. If version is 1.14.11 or lower, system is vulnerable.Check Version:
wp plugin list --name=telsender --field=versionVerify Fix Applied:
Verify TelSender plugin version is 1.14.12 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to TelSender endpoints
- Unexpected plugin function calls from non-admin users
- Failed authorization attempts followed by successful access
Network Indicators:
- HTTP requests to /wp-content/plugins/telsender/ from unauthorized IPs
- Unusual API calls to TelSender functionality
SIEM Query:
source="wordpress" AND (uri_path="/wp-content/plugins/telsender/*" OR plugin="telsender") AND (user_role!="administrator" OR auth_failure="true")