CVE-2025-4855 (GCVE-0-2025-4855)
Vulnerability from cvelistv5 – Published: 2025-07-08 23:22 – Updated: 2026-04-08 17:15
VLAI
EPSS
VEX
Title
Support Board <= 3.8.0 - Unauthenticated Authorization Bypass due to Use of Default Secret Key
Summary
The Support Board plugin for WordPress is vulnerable to unauthorized access/modification/deletion of data due to use of hardcoded default secrets in the sb_encryption() function in all versions up to, and including, 3.8.0. This makes it possible for unauthenticated attackers to bypass authorization and execute arbitrary AJAX actions defined in the sb_ajax_execute() function. An attacker can use this vulnerability to exploit CVE-2025-4828 and various other functions unauthenticated.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-09 13:14 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Schiocco | Support Board |
Affected:
0 , ≤ 3.8.0
(semver)
|
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-4855",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-07-09T13:14:52.717607Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-07-09T13:14:58.196Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Support Board",
"vendor": "Schiocco",
"versions": [
{
"lessThanOrEqual": "3.8.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Friderika Baranyai"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Support Board plugin for WordPress is vulnerable to unauthorized access/modification/deletion of data due to use of hardcoded default secrets in the sb_encryption() function in all versions up to, and including, 3.8.0. This makes it possible for unauthenticated attackers to bypass authorization and execute arbitrary AJAX actions defined in the sb_ajax_execute() function. An attacker can use this vulnerability to exploit CVE-2025-4828 and various other functions unauthenticated."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-639",
"description": "CWE-639 Authorization Bypass Through User-Controlled Key",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-08T17:15:40.803Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/afd48bc8-d490-4a3e-97fc-70cf008cbf66?source=cve"
},
{
"url": "https://codecanyon.net/item/support-board-help-desk-and-chat/20359943"
}
],
"timeline": [
{
"lang": "en",
"time": "2025-05-15T00:00:00.000Z",
"value": "Discovered"
},
{
"lang": "en",
"time": "2025-07-07T16:15:34.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2025-07-08T10:43:20.000Z",
"value": "Disclosed"
}
],
"title": "Support Board \u003c= 3.8.0 - Unauthenticated Authorization Bypass due to Use of Default Secret Key"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2025-4855",
"datePublished": "2025-07-08T23:22:49.550Z",
"dateReserved": "2025-05-16T17:00:48.567Z",
"dateUpdated": "2026-04-08T17:15:40.803Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-4855",
"date": "2026-09-20",
"epss": "0.00338",
"percentile": "0.27273"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Support Board",
"vendor": "Schiocco",
"versions": [
{
"lessThanOrEqual": "3.8.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "security@wordfence.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:schiocco:support_board:*:*:*:*:*:wordpress:*:*",
"matchCriteriaId": "382A28AC-EA54-47C5-8B04-8F591BDC4171",
"versionEndExcluding": "3.8.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The Support Board plugin for WordPress is vulnerable to unauthorized access/modification/deletion of data due to use of hardcoded default secrets in the sb_encryption() function in all versions up to, and including, 3.8.0. This makes it possible for unauthenticated attackers to bypass authorization and execute arbitrary AJAX actions defined in the sb_ajax_execute() function. An attacker can use this vulnerability to exploit CVE-2025-4828 and various other functions unauthenticated."
},
{
"lang": "es",
"value": "El complemento Support Board para WordPress es vulnerable al acceso, modificaci\u00f3n y eliminaci\u00f3n no autorizados de datos debido al uso de secretos predeterminados codificados en la funci\u00f3n sb_encryption() en todas las versiones hasta la 3.8.0 incluida. Esto permite a atacantes no autenticados eludir la autorizaci\u00f3n y ejecutar acciones AJAX arbitrarias definidas en la funci\u00f3n sb_ajax_execute(). Un atacante puede usar esta vulnerabilidad para explotar CVE-2025-4828 y otras funciones sin autenticar."
}
],
"id": "CVE-2025-4855",
"lastModified": "2026-06-17T09:34:09.807",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "security@wordfence.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-4855",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-07-09T13:14:52.717607Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-07-09T00:15:47.243",
"references": [
{
"source": "security@wordfence.com",
"tags": [
"Product"
],
"url": "https://codecanyon.net/item/support-board-help-desk-and-chat/20359943"
},
{
"source": "security@wordfence.com",
"tags": [
"Third Party Advisory"
],
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/afd48bc8-d490-4a3e-97fc-70cf008cbf66?source=cve"
}
],
"sourceIdentifier": "security@wordfence.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-639"
}
],
"source": "security@wordfence.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-03-27T08:36:10+00:00",
"cve": "CVE-2025-4855",
"id": "CVE-2025-4855",
"initial_release_date": "2025-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Support Board \u003c= 3.8.0 - Unauthenticated Authorization Bypass due to Use of Default Secret Key",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-4855.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-4855",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-07-09T13:14:52.717607Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-07-09T13:14:55.489Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Support Board",
"vendor": "Schiocco",
"versions": [
{
"lessThanOrEqual": "3.8.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Friderika Baranyai"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Support Board plugin for WordPress is vulnerable to unauthorized access/modification/deletion of data due to use of hardcoded default secrets in the sb_encryption() function in all versions up to, and including, 3.8.0. This makes it possible for unauthenticated attackers to bypass authorization and execute arbitrary AJAX actions defined in the sb_ajax_execute() function. An attacker can use this vulnerability to exploit CVE-2025-4828 and various other functions unauthenticated."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-639",
"description": "CWE-639 Authorization Bypass Through User-Controlled Key",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-08T17:15:40.803Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/afd48bc8-d490-4a3e-97fc-70cf008cbf66?source=cve"
},
{
"url": "https://codecanyon.net/item/support-board-help-desk-and-chat/20359943"
}
],
"timeline": [
{
"lang": "en",
"time": "2025-05-15T00:00:00.000Z",
"value": "Discovered"
},
{
"lang": "en",
"time": "2025-07-07T16:15:34.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2025-07-08T10:43:20.000Z",
"value": "Disclosed"
}
],
"title": "Support Board \u003c= 3.8.0 - Unauthenticated Authorization Bypass due to Use of Default Secret Key"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2025-4855",
"datePublished": "2025-07-08T23:22:49.550Z",
"dateReserved": "2025-05-16T17:00:48.567Z",
"dateUpdated": "2026-04-08T17:15:40.803Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
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.
Loading…
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.
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.
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.
Loading…
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.
Loading…