FKIE_CVE-2026-10795
Vulnerability from fkie_nvd - Published: 2026-06-11 07:16 - Updated: 2026-07-23 09:10
Severity
Summary
The UpdraftPlus: WP Backup & Migration Plugin plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 1.26.4 via the UpdraftPlus_Remote_Communications_V2::wp_loaded function. This is due to insufficient validation of the remote communications message format, where signature verification can be bypassed and unchecked decryption return values collapse to a predictable all-zero encryption key. This makes it possible for unauthenticated attackers to forge arbitrary RPC commands and run them as the connected administrator, such as uploading and activating a malicious plugin, which ultimately leads to remote code execution.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "UpdraftPlus: WP Backup \u0026 Migration Plugin",
"vendor": "davidanderson",
"versions": [
{
"lessThanOrEqual": "1.26.4",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "security@wordfence.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The UpdraftPlus: WP Backup \u0026 Migration Plugin plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 1.26.4 via the UpdraftPlus_Remote_Communications_V2::wp_loaded function. This is due to insufficient validation of the remote communications message format, where signature verification can be bypassed and unchecked decryption return values collapse to a predictable all-zero encryption key. This makes it possible for unauthenticated attackers to forge arbitrary RPC commands and run them as the connected administrator, such as uploading and activating a malicious plugin, which ultimately leads to remote code execution."
},
{
"lang": "es",
"value": "El plugin UpdraftPlus: WP Backup \u0026 Migration Plugin para WordPress es vulnerable a omisi\u00f3n de autenticaci\u00f3n en todas las versiones hasta, e incluyendo, la 1.26.4 a trav\u00e9s de la funci\u00f3n UpdraftPlus_Remote_Communications_V2::wp_loaded. Esto se debe a una validaci\u00f3n insuficiente del formato del mensaje de comunicaciones remotas, donde la verificaci\u00f3n de la firma puede ser omitida y los valores de retorno de descifrado no verificados colapsan a una clave de cifrado predecible de todo ceros. Esto hace posible que atacantes no autenticados forjen comandos RPC arbitrarios y los ejecuten como el administrador conectado, como subir y activar un plugin malicioso, lo que finalmente conduce a ejecuci\u00f3n remota de c\u00f3digo."
}
],
"id": "CVE-2026-10795",
"lastModified": "2026-07-23T09:10:00.113",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.2,
"impactScore": 5.9,
"source": "security@wordfence.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-10795",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-11T14:37:25.695215Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-06-11T07:16:26.713",
"references": [
{
"source": "security@wordfence.com",
"url": "https://plugins.svn.wordpress.org/updraftplus/tags/1.26.4/vendor/team-updraft/common-libs/src/updraft-rpc/class-udrpc.php"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.svn.wordpress.org/updraftplus/tags/1.26.4/vendor/team-updraft/common-libs/src/updraft-rpc/class-udrpc2.php"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/changeset/3561938/updraftplus/trunk/vendor/team-updraft/common-libs/src/updraft-rpc/class-udrpc2.php"
},
{
"source": "security@wordfence.com",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e901c2a0-2477-4b9a-8483-6002419e0a2f?source=cve"
}
],
"sourceIdentifier": "security@wordfence.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-347"
}
],
"source": "security@wordfence.com",
"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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