多说社会化评论框 <= 1.2 — Unauthenticated Privilege Escalation via api.php 'option'/'value' Parameters

Am I affected?

• Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under 多说社会化评论框.
• No admin access? Run a passive check of your site. It reads public files only.

What to do

1. No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
3. Watch 多说社会化评论框 to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Spy0x7.

The 多说社会化评论框 plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.2. The vulnerability exists due to a missing capability and nonce check on a directly web-accessible API endpoint, combined with a trivially forgeable HMAC-SHA1 signature keyed on an always-empty WordPress option, which allows the endpoint's `update_option` handler to pass attacker-controlled `option` and `value` parameters directly to WordPress's `update_option` function without any allowlist or sanitization. This makes it possible for unauthenticated attackers to update arbitrary WordPress options — such as setting `default_role` to `administrator` and enabling open registration — and subsequently register an account with full administrator privileges.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

• Advisorywordfence.com

Related CVEs

Timeline

1. Jul 7, 2026

   CVE published

   Severity high, CVSS 8.8

2. Nov 13, 2026

   Record last updated