CVE-2023-6877 (GCVE-0-2023-6877)

Vulnerability from cvelistv5 – Published: 2024-04-07 01:55 – Updated: 2024-08-02 08:42
VLAI?
Summary
The RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcode(s) in all versions up to, and including, 4.3.3 due to insufficient input sanitization and output escaping on the Content-Type field of error messages when retrieving an invalid RSS feed. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Severity ?
6.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
themeisle RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator Affected: * , ≤ 4.3.3 (semver)
Create a notification for this product.
Credits
Colin Xu
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-6877",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-04-08T13:22:12.430470Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-19T19:30:30.419Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T08:42:08.264Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/7d25e85f-28f7-4cc5-9856-25cc5aaf1418?source=cve"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://plugins.trac.wordpress.org/changeset/3012849/feedzy-rss-feeds"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "RSS Aggregator by Feedzy \u2013 Feed to Post, Autoblogging, News \u0026 YouTube Video Feeds Aggregator",
          "vendor": "themeisle",
          "versions": [
            {
              "lessThanOrEqual": "4.3.3",
              "status": "affected",
              "version": "*",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Colin Xu"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The RSS Aggregator by Feedzy \u2013 Feed to Post, Autoblogging, News \u0026 YouTube Video Feeds Aggregator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin\u0027s shortcode(s) in all versions up to, and including, 4.3.3 due to insufficient input sanitization and output escaping on the Content-Type field of error messages when retrieving an invalid RSS feed. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-04-07T01:55:15.228Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/7d25e85f-28f7-4cc5-9856-25cc5aaf1418?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset/3012849/feedzy-rss-feeds"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2023-12-18T00:00:00.000+00:00",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2024-04-06T00:00:00.000+00:00",
          "value": "Disclosed"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2023-6877",
    "datePublished": "2024-04-07T01:55:15.228Z",
    "dateReserved": "2023-12-15T20:15:51.025Z",
    "dateUpdated": "2024-08-02T08:42:08.264Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "descriptions": "[{\"lang\": \"en\", \"value\": \"The RSS Aggregator by Feedzy \\u2013 Feed to Post, Autoblogging, News \u0026 YouTube Video Feeds Aggregator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin\u0027s shortcode(s) in all versions up to, and including, 4.3.3 due to insufficient input sanitization and output escaping on the Content-Type field of error messages when retrieving an invalid RSS feed. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.\"}, {\"lang\": \"es\", \"value\": \"El complemento RSS Aggregator by Feedzy \\u2013 Feed to Post, Autoblogging, News \u0026amp; YouTube Video Feeds Aggregator de WordPress es vulnerable a cross-site scripting almacenado a trav\\u00e9s de los c\\u00f3digos cortos del complemento en todas las versiones hasta la 4.3.3 incluida debido a sanitizaci\\u00f3n de entrada insuficiente y salida que se escapa en el campo Tipo de contenido de los mensajes de error al recuperar una fuente RSS no v\\u00e1lida. Esto hace posible que atacantes autenticados, con acceso de nivel de colaborador y superior, inyecten scripts web arbitrarios en p\\u00e1ginas que se ejecutar\\u00e1n cada vez que un usuario acceda a una p\\u00e1gina inyectada.\"}]",
      "id": "CVE-2023-6877",
      "lastModified": "2024-11-21T08:44:44.600",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"security@wordfence.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N\", \"baseScore\": 6.4, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 3.1, \"impactScore\": 2.7}]}",
      "published": "2024-04-07T02:15:07.450",
      "references": "[{\"url\": \"https://plugins.trac.wordpress.org/changeset/3012849/feedzy-rss-feeds\", \"source\": \"security@wordfence.com\"}, {\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/7d25e85f-28f7-4cc5-9856-25cc5aaf1418?source=cve\", \"source\": \"security@wordfence.com\"}, {\"url\": \"https://plugins.trac.wordpress.org/changeset/3012849/feedzy-rss-feeds\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/7d25e85f-28f7-4cc5-9856-25cc5aaf1418?source=cve\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "security@wordfence.com",
      "vulnStatus": "Undergoing Analysis"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-6877\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2024-04-07T02:15:07.450\",\"lastModified\":\"2025-01-14T20:36:35.477\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The RSS Aggregator by Feedzy \u2013 Feed to Post, Autoblogging, News \u0026 YouTube Video Feeds Aggregator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin\u0027s shortcode(s) in all versions up to, and including, 4.3.3 due to insufficient input sanitization and output escaping on the Content-Type field of error messages when retrieving an invalid RSS feed. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.\"},{\"lang\":\"es\",\"value\":\"El complemento RSS Aggregator by Feedzy \u2013 Feed to Post, Autoblogging, News \u0026amp; YouTube Video Feeds Aggregator de WordPress es vulnerable a cross-site scripting almacenado a trav\u00e9s de los c\u00f3digos cortos del complemento en todas las versiones hasta la 4.3.3 incluida debido a sanitizaci\u00f3n de entrada insuficiente y salida que se escapa en el campo Tipo de contenido de los mensajes de error al recuperar una fuente RSS no v\u00e1lida. Esto hace posible que atacantes autenticados, con acceso de nivel de colaborador y superior, inyecten scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina inyectada.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@wordfence.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N\",\"baseScore\":6.4,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.1,\"impactScore\":2.7},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N\",\"baseScore\":5.4,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.3,\"impactScore\":2.7}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:themeisle:rss_aggregator_by_feedzy:*:*:*:*:*:wordpress:*:*\",\"versionEndExcluding\":\"4.3.4\",\"matchCriteriaId\":\"FD9E2D2A-F302-45D9-9B65-1A67F4EE8FA0\"}]}]}],\"references\":[{\"url\":\"https://plugins.trac.wordpress.org/changeset/3012849/feedzy-rss-feeds\",\"source\":\"security@wordfence.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/7d25e85f-28f7-4cc5-9856-25cc5aaf1418?source=cve\",\"source\":\"security@wordfence.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://plugins.trac.wordpress.org/changeset/3012849/feedzy-rss-feeds\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/7d25e85f-28f7-4cc5-9856-25cc5aaf1418?source=cve\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/7d25e85f-28f7-4cc5-9856-25cc5aaf1418?source=cve\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://plugins.trac.wordpress.org/changeset/3012849/feedzy-rss-feeds\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T08:42:08.264Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-6877\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-04-08T13:22:12.430470Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-19T19:30:27.970Z\"}}], \"cna\": {\"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Colin Xu\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 6.4, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N\"}}], \"affected\": [{\"vendor\": \"themeisle\", \"product\": \"RSS Aggregator by Feedzy \\u2013 Feed to Post, Autoblogging, News \u0026 YouTube Video Feeds Aggregator\", \"versions\": [{\"status\": \"affected\", \"version\": \"*\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.3.3\"}], \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2023-12-18T00:00:00.000+00:00\", \"value\": \"Vendor Notified\"}, {\"lang\": \"en\", \"time\": \"2024-04-06T00:00:00.000+00:00\", \"value\": \"Disclosed\"}], \"references\": [{\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/7d25e85f-28f7-4cc5-9856-25cc5aaf1418?source=cve\"}, {\"url\": \"https://plugins.trac.wordpress.org/changeset/3012849/feedzy-rss-feeds\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The RSS Aggregator by Feedzy \\u2013 Feed to Post, Autoblogging, News \u0026 YouTube Video Feeds Aggregator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin\u0027s shortcode(s) in all versions up to, and including, 4.3.3 due to insufficient input sanitization and output escaping on the Content-Type field of error messages when retrieving an invalid RSS feed. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"shortName\": \"Wordfence\", \"dateUpdated\": \"2024-04-07T01:55:15.228Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-6877\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-08-02T08:42:08.264Z\", \"dateReserved\": \"2023-12-15T20:15:51.025Z\", \"assignerOrgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"datePublished\": \"2024-04-07T01:55:15.228Z\", \"assignerShortName\": \"Wordfence\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • 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.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.