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CVE-2026-66390

Status: AnalyzedMedium (6.1)—

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Apache Wicket.

This issue affects Apache Wicket: from 9.0.0 through 9.23.0, from 10.0.0 through 10.9.0.

Users are recommended to upgrade to version 10.10.0, which fixes the issue.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2026-66390",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
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            },
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          ],
          "version": "2.0.3",
          "timestamp": "2026-07-27T17:28:55.876938Z"
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
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        "exploitabilityScore": 2.8
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  "affected": [
    {
      "source": "security@apache.org",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Wicket",
          "versions": [
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              "version": "9.0.0",
              "versionType": "semver",
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          ],
          "packageName": "org.apache.wicket:wicket-core",
          "collectionURL": "https://repo.maven.apache.org/maven2",
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  "published": "2026-07-27T17:16:41.643",
  "references": [
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      "tags": [
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        "Vendor Advisory"
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  "weaknesses": [
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      "description": [
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          "value": "CWE-79"
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  "descriptions": [
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      "lang": "en",
      "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Apache Wicket.\n\nThis issue affects Apache Wicket: from 9.0.0 through 9.23.0, from 10.0.0 through 10.9.0.\n\nUsers are recommended to upgrade to version 10.10.0, which fixes the issue."
    }
  ],
  "lastModified": "2026-08-05T18:43:40.290",
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