CVE-2026-4804

The Zakra theme for WordPress is vulnerable to Stored Cross-Site Scripting via post meta values in all versions up to, and including, 4.2.0. This is due to the theme registering three post meta fields (zakra_menu_item_color, zakra_menu_item_hover_color, and zakra_menu_item_active_color) with 'show_in_rest' => true and 'auth_callback' => '__return_true', but without any sanitize_callback parameter in the register_post_meta() calls. While the classic editor save path applies sanitize_hex_color() sanitization, the REST API path completely bypasses this protection. The unsanitized meta values are then retrieved via get_post_meta() and concatenated directly into CSS strings that are output through wp_add_inline_style() without any escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the injected page.

• CWE-79

• https://themes.trac.wordpress.org/changeset?reponame=&new=330192%40zakra%2F4.2.1&old=297420%40zakra%2F4.2.0#file39
• https://www.wordfence.com/threat-intel/vulnerabilities/id/bbda67a3-0413-4d8e-8157-84c9c87b8695?source=cve

Published

Jul 3, 2026

Last Modified

Jul 6, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-48034Hulumi is an open-source toolkit that ships secure-by-defaul…8.5
• CVE-2026-48035Hulumi is an open-source toolkit that ships secure-by-defaul…7.1
• CVE-2026-48036Hulumi is an open-source toolkit that ships secure-by-defaul…8.4
• CVE-2026-48037Hulumi is an open-source toolkit that ships secure-by-defaul…6.3
• CVE-2026-48038joi is a schema description language and data validator for …5.3
• CVE-2026-48039Meta Ads MCP is a Model Context Protocol (MCP) server that l…9.1
• CVE-2026-48040The netty incubator codec.bhttp is a java language binary ht…9.1
• CVE-2026-48042Envoy is an open source edge and service proxy designed for …7.5
• CVE-2026-48043Netty is a network application framework for development of …7.5
• CVE-2026-48044Envoy is an open source edge and service proxy designed for …7.5
• CVE-2026-48045Zeroconf is a pure Python implementation of multicast DNS se…6.5
• CVE-2026-48046Streambert is a cross-platform Electron Desktop App to strea…9.3