{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-92537",
        "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "state": "PUBLISHED",
        "assignerShortName": "Wordfence",
        "dateReserved": "2026-09-16T12:53:23.351Z",
        "datePublished": "2026-10-01T02:27:46.143Z",
        "dateUpdated": "2026-10-01T14:21:14.764Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
                "shortName": "Wordfence",
                "dateUpdated": "2026-10-01T02:27:46.143Z"
            },
            "affected": [
                {
                    "vendor": "satollo",
                    "product": "Newsletter – Send awesome emails from WordPress",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThanOrEqual": "9.3.9",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "The Newsletter – Send awesome emails from WordPress plugin for WordPress is vulnerable to Insufficiently Protected Credentials in all versions up to, and including, 9.3.9 The plugin's public click-tracking REST route `/tnp/l/` is registered with `permission_callback => '__return_true'` and, upon receiving a valid keyed-MD5 signature, calls `set_user_cookie()`, which emits a `Set-Cookie: newsletter=<id>-<raw_token>` response header to the requester because the subscriber object loaded via `get_user()` lacks the `_trusted` property, causing `get_user_key()` to return the raw token column value instead of its MD5-masked variant. This makes it possible for unauthenticated attackers who obtain any signed click-tracking URL for a target subscriber to receive that subscriber's permanent raw authentication cookie, which they can then use to export the subscriber's full PII record via the JSON profile-export endpoint (`?na=px`), rewrite the subscriber's stored profile (`?na=ps`), and silently unsubscribe the subscriber via the RFC-8058 one-click endpoint (`?na=ocu`), none of which require a nonce, password, or email challenge. Signed tracking URLs are embedded in every external link of every newsletter delivered to a subscriber, carry no timestamp, and never expire until the site's relink key rotates, meaning that any party who observes such a URL — through a forwarded email, a shared inbox, a mail-gateway log, or Referer headers on the redirect target, which has no Referrer-Policy set — can replay it indefinitely to obtain the victim's credential."
                }
            ],
            "title": "Newsletter <= 9.3.9 - Unauthenticated Insufficiently Protected Credentials via '/tnp/l/' Click-Tracking REST Endpoint (Raw Subscriber Token Cookie Disclosure)",
            "references": [
                {
                    "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ed68a4ff-a2aa-4df7-96b1-f094bce4b9b7?source=cve"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/newsletter/tags/9.3.9/statistics/statistics.php#L174"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/newsletter/tags/9.3.9/includes/module.php#L403"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/newsletter/tags/9.3.9/includes/module-base.php#L441"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/newsletter/tags/9.3.9/statistics/statistics.php#L107"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/newsletter/tags/9.3.9/statistics/statistics.php#L335"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/newsletter/tags/9.3.9/includes/module-base.php#L1209"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/changeset?reponame=&new=3709894%40newsletter%2Ftags%2F9.4.0&old=3695457%40newsletter%2Ftags%2F9.3.9"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-522 Insufficiently Protected Credentials",
                            "cweId": "CWE-522",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
                        "baseScore": 5.3,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Swayam"
                }
            ],
            "timeline": [
                {
                    "time": "2026-09-16T13:37:46.000Z",
                    "lang": "en",
                    "value": "Vendor Notified"
                },
                {
                    "time": "2026-09-30T13:32:34.000Z",
                    "lang": "en",
                    "value": "Disclosed"
                }
            ]
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-01T14:21:07.819888Z",
                                "id": "CVE-2026-92537",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-10-01T14:21:14.764Z"
                }
            }
        ]
    }
}