{
 "id": "WPSEC-2026-2794",
 "url": "https://wpsec.com/vuln/WPSEC-2026-2794/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-2794/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-2794/index.md",
 "title": "FireBox <= 3.1.15 - Unauthenticated Reflected Cross-Site Scripting via Smart Tags",
 "description": "The FireBox plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the {querystring.*}, {cookie.*}, {post.*} and {client.useragent} Smart Tags in all versions up to, and including, 3.1.15 due to insufficient input sanitization and output escaping. Values sent by a visitor were only stripped of HTML tags without encoding quotes (and the User-Agent value was returned without any sanitization), and Smart Tags are replaced after campaign content has been rendered and escaped, so a value placed inside an HTML attribute could break out of it. This makes it possible for unauthenticated attackers to inject arbitrary web scripts into pages containing a campaign that uses these Smart Tags, which execute if they can successfully trick a user into performing an action such as clicking on a crafted link.",
 "plugin": {
  "slug": "firebox",
  "name": "FireBox",
  "full_name": "FireBox – WooCommerce Popup Builder, Exit Intent Popup, Email Optin & Cart Abandonment",
  "wordpress_org": "https://wordpress.org/plugins/firebox/",
  "advisories_url": "https://wpsec.com/vuln/plugin/firebox/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/firebox"
 },
 "type": "XSS",
 "cwe": [
  "CWE-79"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 6.1,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "3.1.16",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 3.1.16"
  ]
 },
 "introduced_in": null,
 "fixed_in": "3.1.16",
 "remediation": "Update to 3.1.16 or later.",
 "fix_released": "2026-11-09T10:36:20+00:00",
 "published": "2026-11-10T10:55:25+00:00",
 "updated": "2026-11-09T23:34:08.129492+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-2794/",
  "https://plugins.svn.wordpress.org/firebox/tags/3.1.16/",
  "https://wordpress.org/plugins/firebox/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/firebox",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "Low",
  "as_of": "2026-11-10"
 }
}