FKIE_CVE-2026-77365

Vulnerability from fkie_nvd - Published: 2026-08-28 05:16 - Updated: 2026-08-28 16:18
Severity
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Summary
The Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'a' (above_fold_images) parameter in all versions up to, and including, 4.2.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.10/inc/manager.php#L468
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.10/inc/rest.php#L159
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.10/inc/rest.php#L935
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.10/inc/v2/PageProfiler/Profile.php#L189
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.10/inc/v2/PageProfiler/Profile.php#L485
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.7/inc/manager.php#L468
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.7/inc/rest.php#L159
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.7/inc/rest.php#L935
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.7/inc/v2/PageProfiler/Profile.php#L189
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.7/inc/v2/PageProfiler/Profile.php#L485
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset/3666687/optimole-wp/trunk/inc/v2/PageProfiler/Profile.php
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset?old_path=%2Foptimole-wp/tags/4.2.10&new_path=%2Foptimole-wp/tags/4.2.11
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/b8634a78-e0d3-4e2e-87d8-4277f56511c6?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Optimole \u2013 Optimize Images | Convert WebP \u0026 AVIF | CDN \u0026 Lazy Load | Image Optimization",
          "vendor": "optimole",
          "versions": [
            {
              "lessThanOrEqual": "4.2.10",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Optimole \u2013 Optimize Images | Convert WebP \u0026 AVIF | CDN \u0026 Lazy Load | Image Optimization plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u0027a\u0027 (above_fold_images) parameter in all versions up to, and including, 4.2.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."
    }
  ],
  "id": "CVE-2026-77365",
  "lastModified": "2026-08-28T16:18:26.437",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.7,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-77365",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-28T15:16:49.246404Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-28T05:16:46.223",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.10/inc/manager.php#L468"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.10/inc/rest.php#L159"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.10/inc/rest.php#L935"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.10/inc/v2/PageProfiler/Profile.php#L189"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.10/inc/v2/PageProfiler/Profile.php#L485"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.7/inc/manager.php#L468"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.7/inc/rest.php#L159"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.7/inc/rest.php#L935"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.7/inc/v2/PageProfiler/Profile.php#L189"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.7/inc/v2/PageProfiler/Profile.php#L485"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset/3666687/optimole-wp/trunk/inc/v2/PageProfiler/Profile.php"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset?old_path=%2Foptimole-wp/tags/4.2.10\u0026new_path=%2Foptimole-wp/tags/4.2.11"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b8634a78-e0d3-4e2e-87d8-4277f56511c6?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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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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