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EUVD-2026-18136

🗓️ 02 Apr 2026 09:30:24Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu

W3 Total Cache up to version 2.9.3 leaks the W3TC_DYNAMIC_SECURITY token via crafted User-Agent when fragment caching is enabled.

Related
Affected
Refs
[
  {
    "enisaIdVendor": [
      {
        "id": "43430db0-edab-321a-8c36-548895192610",
        "vendor": {
          "name": "boldgrid"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "d975f4fe-21cc-377f-851f-3eb741cccf9d",
        "product": {
          "name": "W3 Total Cache"
        },
        "product_version": "0 ≤2.9.3"
      }
    ]
  }
]

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02 Apr 2026 09:30Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5
EPSS0.00025
SSVC
0