tagDiv Opt-In Builder: Unauthenticated SQL injection (blind) in WordPress plugin

Summary

The tagDiv Opt-In Builder WordPress plugin (td-subscription) up to and including version 1.7.6 contains a blind SQL injection flaw (CWE-89). The vulnerability can be triggered without logging in, so an attacker can potentially read, modify or delete database content, including user accounts and subscriber data. Patchstack rates the issue as critical (CVSS 9.3) and describes it as highly dangerous, but no confirmed exploitation in the wild is known.

Affected

• tagDiv Opt-In Builder WordPress plugin (slug td-subscription), versions up to and including 1.7.6
• Required privilege: none (unauthenticated)

Fixed in

• Version 1.7.7 (per Patchstack); update to 1.7.7 or later
• Vendor confirmation of the fix: Unknown.

Workaround

• Unknown from the vendor.
• If an update is not possible immediately, ask your hosting provider or web developer for help. A web application firewall or virtual patch may block attacks as an interim measure; its effectiveness for this CVE is not verified.
• If the plugin is not needed, deactivate it until it is patched.

Exploitation

• Exploited in the wild: Unknown. No confirmation found.
• CISA KEV: not listed (per the research notes).
• Public proof of concept: none found.
• CISA SSVC: exploitation none, automatable yes, technical impact partial.
• EPSS: about 0.002 per one aggregator.

Our recommendation

• Check all WordPress sites for the tagDiv Opt-In Builder plugin, including client sites.
• Update the plugin to version 1.7.7 or later as a priority, especially on sites that store subscriber or customer data.
• If an update is not possible, deactivate the plugin or apply a WAF rule and involve your hosting provider or web developer.
• Review web server and database logs for unusual database errors or slow requests.

Public exploits iAttack code is publicly available (PoC on GitHub, Metasploit or Exploit-DB).

PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.

Research sources

• Patchstack advisory CVE-2026-96330 patchstack.com
• CVE record threatint mirror cve.threatint.com
• Strix AI CVE overview www.strix.ai
• tagDiv Opt-In Builder product page tagdiv.com
• Vulners Rapid7 record vulners.com

Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 31 Oct 2026, 02:47.