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CVE-2026-103875

Full vulnerability record from the local CVENow database.

Description

The Media Library Assistant plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'search-string' parameter in all versions up to, and including, 3.42 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Exploitation requires the targeted site to have a publicly accessible page containing an [mla_gallery] shortcode configured with a pagination output mode and an mla_link_href template that reflects a {+request:...+} token, along with enough attachments to trigger pagination.

Severity
MEDIUM
CVSS score
4.7 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-10-29 10:17:01.977000
Last modified
2026-10-29 14:56:26.107000
View original CVE JSON
{
  "id": "CVE-2026-103875",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-29T10:17:01.977",
  "lastModified": "2026-10-29T14:56:26.107",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Media Library Assistant plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'search-string' parameter in all versions up to, and including, 3.42 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Exploitation requires the targeted site to have a publicly accessible page containing an [mla_gallery] shortcode configured with a pagination output mode and an mla_link_href template that reflects a {+request:...+} token, along with enough attachments to trigger pagination."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "dglingren",
          "product": "Media Library Assistant",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "lessThanOrEqual": "3.42",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 2.7
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-29T10:33:53.742479Z",
          "id": "CVE-2026-103875",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://plugins.trac.wordpress.org/changeset/3760471",
      "source": "[email protected]"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/media-library-assistant/tags/3.42/includes/class-mla-data.php#L1548",
      "source": "[email protected]"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/media-library-assistant/tags/3.42/includes/class-mla-shortcode-support.php#L2482",
      "source": "[email protected]"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/media-library-assistant/tags/3.42/includes/class-mla-shortcode-support.php#L2585",
      "source": "[email protected]"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/media-library-assistant/tags/3.43/includes/class-mla-shortcode-support.php",
      "source": "[email protected]"
    },
    {
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/357d9d96-afb1-4b62-90cf-8d38a4cede0e?source=cve",
      "source": "[email protected]"
    }
  ]
}