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Stored cross-site scripting in WP Data Access WordPress plugin

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

WP Data Access, a WordPress plugin from peterschulznl, is affected in versions up to and including 5.5.90. Its Data Projects front-end simple form does not sanitize or escape stored values of text columns when it renders them inside a textarea element (CWE-79). An authenticated attacker with Subscriber-level access or higher can store arbitrary web scripts that run when a user opens the affected page.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

Description from the CNA

The WP Data Access – App Builder for Tables, Forms, Dashboards, Charts & Maps plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Data Projects front-end simple form in versions up to, and including, 5.5.90 This is due to insufficient input sanitization and output escaping on the value of TEXT/TINYTEXT/MEDIUMTEXT/LONGTEXT columns rendered by the WPDA_Simple_Form_Item_Textarea::show_item() method, which emits the stored column value directly inside a <textarea> element after only replacing '&' with '&amp;'. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00201 10th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
peterschulznlWP Data Access – App Builder for Tables, Forms, Dashboards, Charts & Mapsup to 5.5.90—No fix listedCNA
  • WP Data Access – App Builder for Tables, Forms, Dashboards, Charts & Maps Vendorpeterschulznl Affected up to 5.5.90 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for WP Data Access.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

Timeline

  1. 2026-11-07 Threatist record created from CVE-2026-120479
  2. 2026-11-07 Alias added: GHSA-566w-prw9-fj3g
  3. 2026-11-07 CISA SSVC decision points changed
  4. 2026-11-07 Priority changed: MEDIUM → LOW

References

  • TI-2026-86553 Incorrect authorization in WP Data Access allows privilege escalation CVSS 3.1HIGH 8.1
  • TI-2024-11530 WP Data Access – App, Table, Form and Chart Builder plugin <= 5.5.22 - Unauthenticated SQL Injection CVSS 3.1HIGH 7.5
  • TI-2026-02796 Authorization bypass in peterschulznl WP Data Access – App Builder for Tables, Forms… CVSS 3.1MEDIUM 5.3
  • TI-2026-86441 Stored cross-site scripting in WP Data Access WordPress plugin CVSS 3.1MEDIUM 6.4
  • TI-2026-86440 Stored cross-site scripting in WP Data Access WordPress plugin CVSS 3.1MEDIUM 6.4
  • TI-2026-00359 WP Data Access <= 5.5.63 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'wpda_app' Shortcode CVSS 3.1MEDIUM 6.4
See all 10 →

Sources