{
 "id": "WPSEC-2026-3137",
 "url": "https://wpsec.com/vuln/WPSEC-2026-3137/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-3137/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-3137/index.md",
 "title": "Blocks Animation <= 3.2.10 - Authenticated (Contributor+) CSS Injection via Custom Animation Delay and Speed Values",
 "description": "The Blocks Animation plugin for WordPress is vulnerable to CSS Injection via the custom animation delay and speed values in versions 2.5.0 up to, and including, 3.2.10. This is due to the front-end script reading the 'o-anim-value-delay-' and 'o-anim-value-speed-' class names of animated blocks and writing the remaining value, without validation, into a page-wide style element. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary CSS rules into pages that render the block, for example to hide or restyle page content, overlay the page with attacker-controlled links, or make visitors' browsers load external resources. It does not allow script execution.",
 "plugin": {
  "slug": "blocks-animation",
  "name": "Blocks Animation",
  "full_name": "Blocks Animation: CSS Animations for Gutenberg Blocks",
  "wordpress_org": "https://wordpress.org/plugins/blocks-animation/",
  "advisories_url": "https://wpsec.com/vuln/plugin/blocks-animation/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/blocks-animation"
 },
 "type": "CONTENT INJECTION",
 "cwe": [
  "CWE-74"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 5.4,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": "2.5.0",
    "from_inclusive": true,
    "to": "3.2.11",
    "to_inclusive": false
   }
  ],
  "text": [
   "from 2.5.0 before 3.2.11"
  ]
 },
 "introduced_in": "2.5.0",
 "fixed_in": "3.2.11",
 "remediation": "Update to 3.2.11 or later.",
 "fix_released": "2026-11-13T09:26:46+00:00",
 "published": "2026-11-14T09:40:51+00:00",
 "updated": "2026-11-13T15:56:48.527524+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-3137/",
  "https://plugins.svn.wordpress.org/blocks-animation/tags/3.2.11/",
  "https://wordpress.org/plugins/blocks-animation/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/blocks-animation",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Medium",
  "affected_versions": "Medium",
  "as_of": "2026-11-14"
 }
}