{
 "id": "WPSEC-2026-1811",
 "url": "https://wpsec.com/vuln/WPSEC-2026-1811/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-1811/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-1811/index.md",
 "title": "Parallax Slider Block <= 1.2.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Slide Button Link",
 "description": "The Parallax Slider Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the slide button link ('data-link' attribute) in all versions up to, and including, 1.2.8, due to insufficient sanitization of the link before it is passed to window.open(): only the first exact lowercase occurrence of 'javascript:' is removed, so mixed-case, repeated or otherwise obfuscated javascript: URIs, as well as vbscript: and data: URIs, are still opened. This makes it possible for authenticated attackers with contributor-level access and above to inject arbitrary web scripts that execute when a user, including an administrator, clicks the slide button.",
 "plugin": {
  "slug": "parallax-slider-block",
  "name": "Parallax Slider Block",
  "full_name": "Parallax Slider Block",
  "wordpress_org": "https://wordpress.org/plugins/parallax-slider-block/",
  "advisories_url": "https://wpsec.com/vuln/plugin/parallax-slider-block/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/parallax-slider-block"
 },
 "type": "XSS",
 "cwe": [
  "CWE-79"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 5.4,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "1.2.9",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 1.2.9"
  ]
 },
 "introduced_in": null,
 "fixed_in": "1.2.9",
 "remediation": "Update to 1.2.9 or later.",
 "fix_released": "2026-10-27T06:57:58+00:00",
 "published": "2026-10-28T07:47:27+00:00",
 "updated": "2026-10-27T13:40:48.760366+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-1811/",
  "https://plugins.svn.wordpress.org/parallax-slider-block/tags/1.2.9/",
  "https://wordpress.org/plugins/parallax-slider-block/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/parallax-slider-block",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "None seen",
  "as_of": "2026-10-28"
 }
}