FKIE_CVE-2026-6910

Vulnerability from fkie_nvd - Published: 2026-07-09 08:16 - Updated: 2026-07-09 16:19
Severity
6.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Summary
The Bookero.pl – system rezerwacji online plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `bookero_products` shortcode's `hide_products` (and `filter_products`) attributes in versions up to and including 2.2. This is due to insufficient input sanitization and output escaping in the `bookero_products()` function — the raw attribute value is concatenated directly into an inline `<script>` block without any escaping. This makes it possible for authenticated attackers with contributor-level access and above to inject arbitrary web scripts into pages that will execute whenever a user accesses the injected page.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/bookeropl/tags/2.1/libraries/bookero-front.php#L173
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/bookeropl/tags/2.1/libraries/bookero-front.php#L174
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/bookeropl/trunk/libraries/bookero-front.php#L173
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/bookeropl/trunk/libraries/bookero-front.php#L174
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset?reponame=&old=3524452%40bookeropl&new=3524452%40bookeropl
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/fd0e6ca6-f6a7-4e81-aea1-3b59de0173d6?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Bookero.pl \u2013 system rezerwacji online",
          "vendor": "safistudio",
          "versions": [
            {
              "lessThanOrEqual": "2.2",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Bookero.pl \u2013 system rezerwacji online plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `bookero_products` shortcode\u0027s `hide_products` (and `filter_products`) attributes in versions up to and including 2.2. This is due to insufficient input sanitization and output escaping in the `bookero_products()` function \u2014 the raw attribute value is concatenated directly into an inline `\u003cscript\u003e` block without any escaping. This makes it possible for authenticated attackers with contributor-level access and above to inject arbitrary web scripts into pages that will execute whenever a user accesses the injected page."
    }
  ],
  "id": "CVE-2026-6910",
  "lastModified": "2026-07-09T16:19:45.567",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 2.7,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-6910",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-09T13:32:46.733391Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-09T08:16:49.210",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/bookeropl/tags/2.1/libraries/bookero-front.php#L173"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/bookeropl/tags/2.1/libraries/bookero-front.php#L174"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/bookeropl/trunk/libraries/bookero-front.php#L173"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/bookeropl/trunk/libraries/bookero-front.php#L174"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3524452%40bookeropl\u0026new=3524452%40bookeropl"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/fd0e6ca6-f6a7-4e81-aea1-3b59de0173d6?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    }
  ]
}



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