CVE-2026-118048

WP Data Access <= 5.5.89 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Autocomplete Lookup Label

2026-11-06 18:23
R3D

Strategic Overview

Status
Patched in 5.5.90
Affected Plugin
WP Data Access – App Builder for Tables, Forms, Dashboards, Charts & Maps
Affected Version
<= 5.5.89
CVSS
6.4Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation
CVE
CVE-2026-118048
View all WP Data Access – App Builder for Tables, Forms, Dashboards, Charts & Maps vulnerabilities

At a glance

CVE-2026-118048 is a medium-severity Improper Neutralization of Input During Web Page Generation vulnerability in the WP Data Access WordPress plugin, affecting versions <= 5.5.89. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 5.5.90; sites on affected versions should update now. Disclosed November 2026, reported by R3D.

Vulnerability Overview

The WP Data Access plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Simple Form autocomplete lookup label in versions up to, and including, 5.5.89 This is due to insufficient output escaping on the value returned by WPDA_Autocomplete::autocomplete_lookup() when it is emitted into a single-quoted HTML attribute by WPDA_Simple_Form_Item_Autocomplete::show_item() (the escape-output lint is explicitly suppressed on the echo line). This makes it possible for authenticated attackers, with Subscriber-level access and above, who are permitted to edit a lookup row through a legacy Form, to inject arbitrary web scripts in pages that will execute whenever a user — including a higher-privileged user editing a linked record that uses the autocomplete relationship — accesses the injected page.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-79: Improper Neutralization of Input During Web Page Generation

WP Data Access <= 5.5.89 carries this weakness at autocomplete_lookup(), and reaching it takes an account at Subscriber level or above. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For WP Data Access the fix is 5.5.90: builds <= 5.5.89 are affected, anything from 5.5.90 onward is not.

Remediation

Update to version 5.5.90, or a newer patched version

How does WordSec protect against this?

An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: WP Data Access 5.5.90 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-118048https://www.wordfence.com/threat-intel/vulnerabilities/id/25cf5cf7-d846-4f0e-aa6b-bbf7dba27b10https://nvd.nist.gov/vuln/detail/CVE-2026-118048

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C