CVE-2026-18579 (GCVE-0-2026-18579)
Vulnerability from cvelistv5
Published
2026-09-11 03:39
Modified
2026-09-11 20:19
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
The WP Photo Album Plus plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'HTTP_X_FORWARDED_FOR' parameter in all versions up to, and including, 9.2.08.003 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. The nonce failure path for the getshortcodedrenderedfenodelay action serves as the log-write trigger rather than an access barrier — a deliberately failed nonce check causes wppa_log() to record the attacker-supplied X-Forwarded-For value to disk, making the exploit fully reachable by unauthenticated callers via the wp_ajax_nopriv_wppa endpoint.
Impacted products
Vendor Product Version
opajaap WP Photo Album Plus Version: 0   ≤ 9.2.08.003
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-18579",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-11T20:11:50.622996Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-11T20:19:12.744Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "WP Photo Album Plus",
          "vendor": "opajaap",
          "versions": [
            {
              "lessThanOrEqual": "9.2.08.003",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Jonah Burgess (CryptoCat)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The WP Photo Album Plus plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u0027HTTP_X_FORWARDED_FOR\u0027 parameter in all versions up to, and including, 9.2.08.003 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. The nonce failure path for the getshortcodedrenderedfenodelay action serves as the log-write trigger rather than an access barrier \u2014 a deliberately failed nonce check causes wppa_log() to record the attacker-supplied X-Forwarded-For value to disk, making the exploit fully reachable by unauthenticated callers via the wp_ajax_nopriv_wppa endpoint."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-11T03:39:33.651Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/251943ed-65d2-4635-9c84-2cf671233543?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.2.08.003/js/wppa-admin-scripts.js#L2069"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.2.08.003/wppa-input.php#L560"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.2.08.003/wppa-utils.php#L1960"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.2.08.003/wppa-ajax.php#L1246"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.2.07.002/js/wppa-admin-scripts.js#L2069"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.2.07.002/wppa-input.php#L560"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.2.07.002/wppa-utils.php#L1960"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.2.07.002/wppa-ajax.php#L1246"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3641521%40wp-photo-album-plus%2Ftrunk%2Fjs%2Fwppa-admin-scripts.js\u0026old=3625666%40wp-photo-album-plus%2Ftrunk%2Fjs%2Fwppa-admin-scripts.js\u0026sfp_email=\u0026sfph_mail="
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3641521%40wp-photo-album-plus%2Ftrunk%2Fwppa-input.php\u0026old=3619969%40wp-photo-album-plus%2Ftrunk%2Fwppa-input.php\u0026sfp_email=\u0026sfph_mail="
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-08-02T15:19:48.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-09-10T14:45:00.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "WP Photo Album Plus \u003c= 9.2.08.003 - Unauthenticated Stored Cross-Site Scripting"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-18579",
    "datePublished": "2026-09-11T03:39:33.651Z",
    "dateReserved": "2026-08-02T15:04:16.371Z",
    "dateUpdated": "2026-09-11T20:19:12.744Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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