CVE-2026-6177 (GCVE-0-2026-6177)

Vulnerability from cvelistv5 – Published: 2026-05-13 12:29 – Updated: 2026-05-13 19:31
VLAI?
Title
Custom Twitter Feeds <= 2.5.4 - Unauthenticated Stored Cross-Site Scripting via Cached Tweet Text
Summary
The Custom Twitter Feeds plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 2.5.4. This is due to insufficient output escaping in the CTF_Display_Elements::get_post_text() function when rendering cached tweet text. The plugin's ctf_get_more_posts AJAX action is available to unauthenticated users and directly outputs cached tweet data through nl2br() without HTML escaping. When an attacker can get malicious content into cached tweet data (either by tweeting content that gets cached by the site's feed configuration, or through other vulnerabilities), the malicious HTML/JavaScript is executed when the unauthenticated endpoint is accessed. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses the affected endpoint.
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
Impacted products
Credits
gidget smith
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-6177",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-13T19:23:25.801007Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-13T19:31:57.701Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Custom Twitter Feeds \u2013 A Tweets Widget or X Feed Widget",
          "vendor": "smub",
          "versions": [
            {
              "lessThanOrEqual": "2.5.4",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "gidget smith"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Custom Twitter Feeds plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 2.5.4. This is due to insufficient output escaping in the CTF_Display_Elements::get_post_text() function when rendering cached tweet text. The plugin\u0027s ctf_get_more_posts AJAX action is available to unauthenticated users and directly outputs cached tweet data through nl2br() without HTML escaping. When an attacker can get malicious content into cached tweet data (either by tweeting content that gets cached by the site\u0027s feed configuration, or through other vulnerabilities), the malicious HTML/JavaScript is executed when the unauthenticated endpoint is accessed. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses the affected endpoint."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.2,
            "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"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-13T12:29:53.119Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e4b2178f-e4da-4bfb-9c27-8c1884499769?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/tags/2.5.4/custom-twitter-feed.php#L447"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/trunk/inc/CTF_Display_Elements.php#L505"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/tags/2.5.4/inc/CTF_Display_Elements.php#L505"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/trunk/custom-twitter-feed.php#L447"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/trunk/inc/CTF_Display_Elements.php#L521"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/tags/2.5.4/inc/CTF_Display_Elements.php#L521"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/trunk/templates/item.php#L36"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/tags/2.5.4/templates/item.php#L36"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3519584%40custom-twitter-feeds\u0026old=3481416%40custom-twitter-feeds"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-04-13T02:22:37.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-05-12T00:00:00.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Custom Twitter Feeds \u003c= 2.5.4 - Unauthenticated Stored Cross-Site Scripting via Cached Tweet Text"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-6177",
    "datePublished": "2026-05-13T12:29:53.119Z",
    "dateReserved": "2026-04-13T02:07:02.800Z",
    "dateUpdated": "2026-05-13T19:31:57.701Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-6177",
      "date": "2026-05-17",
      "epss": "0.00163",
      "percentile": "0.36846"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-6177\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2026-05-13T13:16:44.967\",\"lastModified\":\"2026-05-13T14:43:46.717\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The Custom Twitter Feeds plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 2.5.4. This is due to insufficient output escaping in the CTF_Display_Elements::get_post_text() function when rendering cached tweet text. The plugin\u0027s ctf_get_more_posts AJAX action is available to unauthenticated users and directly outputs cached tweet data through nl2br() without HTML escaping. When an attacker can get malicious content into cached tweet data (either by tweeting content that gets cached by the site\u0027s feed configuration, or through other vulnerabilities), the malicious HTML/JavaScript is executed when the unauthenticated endpoint is accessed. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses the affected endpoint.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N\",\"baseScore\":7.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":2.7}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"references\":[{\"url\":\"https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/tags/2.5.4/custom-twitter-feed.php#L447\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/tags/2.5.4/inc/CTF_Display_Elements.php#L505\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/tags/2.5.4/inc/CTF_Display_Elements.php#L521\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/tags/2.5.4/templates/item.php#L36\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/trunk/custom-twitter-feed.php#L447\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/trunk/inc/CTF_Display_Elements.php#L505\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/trunk/inc/CTF_Display_Elements.php#L521\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/trunk/templates/item.php#L36\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3519584%40custom-twitter-feeds\u0026old=3481416%40custom-twitter-feeds\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/e4b2178f-e4da-4bfb-9c27-8c1884499769?source=cve\",\"source\":\"security@wordfence.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-6177\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-13T19:23:25.801007Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-13T19:31:53.134Z\"}}], \"cna\": {\"title\": \"Custom Twitter Feeds \u003c= 2.5.4 - Unauthenticated Stored Cross-Site Scripting via Cached Tweet Text\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"gidget smith\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.2, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N\"}}], \"affected\": [{\"vendor\": \"smub\", \"product\": \"Custom Twitter Feeds \\u2013 A Tweets Widget or X Feed Widget\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"2.5.4\"}], \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-04-13T02:22:37.000Z\", \"value\": \"Vendor Notified\"}, {\"lang\": \"en\", \"time\": \"2026-05-12T00:00:00.000Z\", \"value\": \"Disclosed\"}], \"references\": [{\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/e4b2178f-e4da-4bfb-9c27-8c1884499769?source=cve\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/tags/2.5.4/custom-twitter-feed.php#L447\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/trunk/inc/CTF_Display_Elements.php#L505\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/tags/2.5.4/inc/CTF_Display_Elements.php#L505\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/trunk/custom-twitter-feed.php#L447\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/trunk/inc/CTF_Display_Elements.php#L521\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/tags/2.5.4/inc/CTF_Display_Elements.php#L521\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/trunk/templates/item.php#L36\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/custom-twitter-feeds/tags/2.5.4/templates/item.php#L36\"}, {\"url\": \"https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3519584%40custom-twitter-feeds\u0026old=3481416%40custom-twitter-feeds\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The Custom Twitter Feeds plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 2.5.4. This is due to insufficient output escaping in the CTF_Display_Elements::get_post_text() function when rendering cached tweet text. The plugin\u0027s ctf_get_more_posts AJAX action is available to unauthenticated users and directly outputs cached tweet data through nl2br() without HTML escaping. When an attacker can get malicious content into cached tweet data (either by tweeting content that gets cached by the site\u0027s feed configuration, or through other vulnerabilities), the malicious HTML/JavaScript is executed when the unauthenticated endpoint is accessed. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses the affected endpoint.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"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\": \"2026-05-13T12:29:53.119Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-6177\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-13T19:31:57.701Z\", \"dateReserved\": \"2026-04-13T02:07:02.800Z\", \"assignerOrgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"datePublished\": \"2026-05-13T12:29:53.119Z\", \"assignerShortName\": \"Wordfence\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…
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

Author Source Type Date Other

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.


Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…