CVE-2026-1786

6.5 MEDIUM

📋 TL;DR

The Twitter posts to Blog WordPress plugin has a missing capability check vulnerability that allows unauthenticated attackers to modify plugin settings. This includes changing Twitter API credentials, post author, post status, and admin menu access permissions. All WordPress sites using this plugin up to version 1.11.25 are affected.

💻 Affected Systems

Products:
  • Twitter posts to Blog WordPress plugin
Versions: All versions up to and including 1.11.25
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All installations with the plugin active are vulnerable regardless of configuration.

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

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could hijack the Twitter API connection to post malicious content, change post authors to impersonate legitimate users, publish unauthorized posts, or lock administrators out of plugin settings.

🟠

Likely Case

Attackers will modify plugin settings to post spam or malicious content through the connected Twitter account, potentially damaging site reputation and SEO.

🟢

If Mitigated

With proper network segmentation and monitoring, unauthorized changes can be detected and reverted before significant damage occurs.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

The vulnerability requires no authentication and can be exploited with simple HTTP requests to the vulnerable endpoint.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.11.26 or later

Vendor Advisory: https://plugins.trac.wordpress.org/browser/twitter-posts-to-blog/trunk/functions.php#L426

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Twitter posts to Blog' plugin. 4. Click 'Update Now' if available. 5. If no update appears, manually download version 1.11.26+ from WordPress.org and replace plugin files.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily deactivate the vulnerable plugin until patched

wp plugin deactivate twitter-posts-to-blog

Web Application Firewall Rule

all

Block requests to the vulnerable endpoint

Add WAF rule to block POST requests to */wp-admin/admin-ajax.php with action=dg_tw_options

🧯 If You Can't Patch

  • Remove the plugin entirely from production environment
  • Implement strict network access controls to limit who can reach the WordPress admin-ajax.php endpoint

🔍 How to Verify

Check if Vulnerable:

Check plugin version in WordPress admin under Plugins → Installed Plugins. If version is 1.11.25 or lower, the site is vulnerable.

Check Version:

wp plugin get twitter-posts-to-blog --field=version

Verify Fix Applied:

After updating, verify plugin version shows 1.11.26 or higher. Test by attempting to access the vulnerable endpoint with unauthenticated requests (should return permission denied).

📡 Detection & Monitoring

Log Indicators:

  • POST requests to /wp-admin/admin-ajax.php with action=dg_tw_options from unauthenticated IPs
  • Sudden changes to plugin settings in WordPress logs

Network Indicators:

  • Unusual POST requests to WordPress admin-ajax.php endpoint from external IPs

SIEM Query:

source="wordpress.log" AND "admin-ajax.php" AND "dg_tw_options" AND NOT (user!="-")

🔗 References

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