FKIE_CVE-2026-15350

Vulnerability from fkie_nvd - Published: 2026-07-16 09:16 - Updated: 2026-07-16 14:16
Severity
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Summary
The The Cache Purger plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.3.20. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to permanently truncate the plugin's cache-purge audit log (wp-content/purge.log), destroying the entire cache-purge audit history. The tcp_log_purge nonce is rendered in the admin bar on frontend pages accessible to all authenticated users including subscribers, meaning any authenticated user possesses the nonce required to trigger the deletion.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-admin.php#L132
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-common.php#L223
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-common.php#L242
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-common.php#L99
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset?reponame=&old=3603867%40the-cache-purger&new=3603867%40the-cache-purger
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/5a9943b5-0f6d-4fbd-97eb-df61acd0c297?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "The Cache Purger",
          "vendor": "kevp75",
          "versions": [
            {
              "lessThanOrEqual": "2.3.20",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The The Cache Purger plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.3.20. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to permanently truncate the plugin\u0027s cache-purge audit log (wp-content/purge.log), destroying the entire cache-purge audit history. The tcp_log_purge nonce is rendered in the admin bar on frontend pages accessible to all authenticated users including subscribers, meaning any authenticated user possesses the nonce required to trigger the deletion."
    }
  ],
  "id": "CVE-2026-15350",
  "lastModified": "2026-07-16T14:16:48.880",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-15350",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-16T13:44:28.384244Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-16T09:16:18.047",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-admin.php#L132"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-common.php#L223"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-common.php#L242"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-common.php#L99"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3603867%40the-cache-purger\u0026new=3603867%40the-cache-purger"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/5a9943b5-0f6d-4fbd-97eb-df61acd0c297?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "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.

Sightings

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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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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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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