CVE-2026-0911 (GCVE-0-2026-0911)
Vulnerability from cvelistv5 – Published: 2026-01-24 12:27 – Updated: 2026-04-08 16:41- CWE-434 - Unrestricted Upload of File with Dangerous Type
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| wpmudev | Hustle – Email Marketing, Lead Generation, Optins, Popups |
Affected:
0 , ≤ 7.8.9.2
(semver)
|
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-0911",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-26T15:30:19.082687Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-01-26T15:44:15.167Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Hustle \u2013 Email Marketing, Lead Generation, Optins, Popups",
"vendor": "wpmudev",
"versions": [
{
"lessThanOrEqual": "7.8.9.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Williwollo"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Hustle \u2013 Email Marketing, Lead Generation, Optins, Popups plugin for WordPress is vulnerable to arbitrary file uploads due to incorrect file type validation in the action_import_module() function in all versions up to, and including, 7.8.9.2. This makes it possible for authenticated attackers, with a lower-privileged role (e.g., Subscriber-level access and above), to upload arbitrary files on the affected site\u0027s server which may make remote code execution possible. Successful exploitation requires an admin to grant Hustle module permissions (or module edit access) to the low-privileged user so they can access the Hustle admin page and obtain the required nonce."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-434",
"description": "CWE-434 Unrestricted Upload of File with Dangerous Type",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-08T16:41:45.913Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/22be5fb5-143e-4934-9f93-e17def18e883?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3440956/wordpress-popup"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-01-13T18:47:07.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-01-23T23:49:25.000Z",
"value": "Disclosed"
}
],
"title": "Hustle \u003c= 7.8.9.2 - Authenticated (Subscriber+) Arbitrary File Upoload via Module Import"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-0911",
"datePublished": "2026-01-24T12:27:15.063Z",
"dateReserved": "2026-01-13T18:31:21.227Z",
"dateUpdated": "2026-04-08T16:41:45.913Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-0911",
"date": "2026-11-12",
"epss": "0.00589",
"percentile": "0.48675"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Hustle \u2013 Email Marketing, Lead Generation, Optins, Popups",
"vendor": "wpmudev",
"versions": [
{
"lessThanOrEqual": "7.8.9.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "security@wordfence.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The Hustle \u2013 Email Marketing, Lead Generation, Optins, Popups plugin for WordPress is vulnerable to arbitrary file uploads due to incorrect file type validation in the action_import_module() function in all versions up to, and including, 7.8.9.2. This makes it possible for authenticated attackers, with a lower-privileged role (e.g., Subscriber-level access and above), to upload arbitrary files on the affected site\u0027s server which may make remote code execution possible. Successful exploitation requires an admin to grant Hustle module permissions (or module edit access) to the low-privileged user so they can access the Hustle admin page and obtain the required nonce."
},
{
"lang": "es",
"value": "El plugin The Hustle \u2013 Email Marketing, Lead Generation, Optins, Popups para WordPress es vulnerable a cargas de archivos arbitrarios debido a una validaci\u00f3n incorrecta del tipo de archivo en la funci\u00f3n action_import_module() en todas las versiones hasta, e incluyendo, la 7.8.9.2. Esto hace posible que atacantes autenticados, con un rol de menor privilegio (por ejemplo, acceso de nivel de Suscriptor y superior), carguen archivos arbitrarios en el servidor del sitio afectado, lo que puede hacer posible la ejecuci\u00f3n remota de c\u00f3digo. La explotaci\u00f3n exitosa requiere que un administrador otorgue permisos del m\u00f3dulo Hustle (o acceso de edici\u00f3n de m\u00f3dulo) al usuario de bajo privilegio para que puedan acceder a la p\u00e1gina de administraci\u00f3n de Hustle y obtener el nonce requerido."
}
],
"id": "CVE-2026-0911",
"lastModified": "2026-06-17T10:11:37.107",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.6,
"impactScore": 5.9,
"source": "security@wordfence.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-0911",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-26T15:30:19.082687Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-01-24T13:15:55.300",
"references": [
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/changeset/3440956/wordpress-popup"
},
{
"source": "security@wordfence.com",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/22be5fb5-143e-4934-9f93-e17def18e883?source=cve"
}
],
"sourceIdentifier": "security@wordfence.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-434"
}
],
"source": "security@wordfence.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-03-27T08:13:10+00:00",
"cve": "CVE-2026-0911",
"id": "CVE-2026-0911",
"initial_release_date": "2026-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Hustle \u003c= 7.8.9.2 - Authenticated (Subscriber+) Arbitrary File Upoload via Module Import",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0911.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-0911",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-26T15:30:19.082687Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-01-26T15:30:20.245Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Hustle \u2013 Email Marketing, Lead Generation, Optins, Popups",
"vendor": "wpmudev",
"versions": [
{
"lessThanOrEqual": "7.8.9.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Williwollo"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Hustle \u2013 Email Marketing, Lead Generation, Optins, Popups plugin for WordPress is vulnerable to arbitrary file uploads due to incorrect file type validation in the action_import_module() function in all versions up to, and including, 7.8.9.2. This makes it possible for authenticated attackers, with a lower-privileged role (e.g., Subscriber-level access and above), to upload arbitrary files on the affected site\u0027s server which may make remote code execution possible. Successful exploitation requires an admin to grant Hustle module permissions (or module edit access) to the low-privileged user so they can access the Hustle admin page and obtain the required nonce."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-434",
"description": "CWE-434 Unrestricted Upload of File with Dangerous Type",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-08T16:41:45.913Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/22be5fb5-143e-4934-9f93-e17def18e883?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3440956/wordpress-popup"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-01-13T18:47:07.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-01-23T23:49:25.000Z",
"value": "Disclosed"
}
],
"title": "Hustle \u003c= 7.8.9.2 - Authenticated (Subscriber+) Arbitrary File Upoload via Module Import"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-0911",
"datePublished": "2026-01-24T12:27:15.063Z",
"dateReserved": "2026-01-13T18:31:21.227Z",
"dateUpdated": "2026-04-08T16:41:45.913Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
Loading timeline…
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.