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CVE-2023-2987

Status: ModifiedCritical (9.8)—

The Wordapp plugin for WordPress is vulnerable to authorization bypass due to an use of insufficiently unique cryptographic signature on the 'wa_pdx_op_config_set' function in versions up to, and including, 1.6.0. This makes it possible for unauthenticated attackers to the plugin to change the 'validation_token' in the plugin config, providing access to the plugin's remote control functionalities, such as creating an admin access URL, which can be used for privilege escalation.

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-2023-2987",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-2987",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-01-13T16:16:28.178678Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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      }
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  "affected": [
    {
      "source": "security@wordfence.com",
      "affectedData": [
        {
          "vendor": "wordapp",
          "product": "Wordapp",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "semver",
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  "published": "2023-05-31T03:15:09.643",
  "references": [
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      "url": "https://lana.report/publication/6e779e9a-e0f9-4102-9f0b-ad46e9c4533f/",
      "source": "security@wordfence.com"
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      "url": "https://plugins.trac.wordpress.org/browser/wordapp/trunk/includes/access.php#L28",
      "tags": [
        "Patch"
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      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/wordapp/trunk/includes/config.php#L59",
      "tags": [
        "Patch"
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      "source": "security@wordfence.com"
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      "url": "https://plugins.trac.wordpress.org/browser/wordapp/trunk/includes/pdx.php#L64",
      "tags": [
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      "source": "security@wordfence.com"
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    {
      "url": "https://plugins.trac.wordpress.org/changeset/3063322/wordapp",
      "source": "security@wordfence.com"
    },
    {
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/80440bfa-4a02-4441-bbdb-52d7dd065a9d?source=cve",
      "tags": [
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      "url": "https://plugins.trac.wordpress.org/browser/wordapp/trunk/includes/config.php#L59",
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/80440bfa-4a02-4441-bbdb-52d7dd065a9d?source=cve",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@wordfence.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-345"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-345"
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      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Wordapp plugin for WordPress is vulnerable to authorization bypass due to an use of insufficiently unique cryptographic signature on the 'wa_pdx_op_config_set' function in versions up to, and including, 1.6.0. This makes it possible for unauthenticated attackers to the plugin to change the 'validation_token' in the plugin config, providing access to the plugin's remote control functionalities, such as creating an admin access URL, which can be used for privilege escalation."
    },
    {
      "lang": "es",
      "value": "El plugin Wordapp para WordPress es vulnerable a una omisión de autorización debido al uso de una firma criptográfica insuficientemente única en la función \"wa_pdx_op_config_set\" en versiones hasta la 1.5.0 inclusive. Esto hace posible que atacantes no autenticados al plugin cambien el \"validation_token\" en la configuración del plugin, proporcionando acceso a las funcionalidades de control remoto del plugin, como la creación de una URL de acceso de administrador, que puede ser utilizada para la esclada de privilegios. "
    }
  ],
  "lastModified": "2026-06-17T05:53:57.310",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:wordapp:wordapp:*:*:*:*:*:wordpress:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5BBC80E3-CFF0-4AAB-8A43-93613FDD05C2",
              "versionEndIncluding": "1.5.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@wordfence.com"
}