FKIE_CVE-2026-22199
Vulnerability from fkie_nvd - Published: 2026-03-13 19:54 - Updated: 2026-03-17 20:26
Severity ?
Summary
wpDiscuz before 7.6.47 contains a vote manipulation vulnerability that allows attackers to manipulate comment votes by obtaining fresh nonces and bypassing rate limiting through client-controlled headers. Attackers can vary User-Agent headers to reset rate limits, request nonces from the unauthenticated wpdGetNonce endpoint, and vote multiple times using IP rotation or reverse proxy header manipulation.
References
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:gvectors:wpdiscuz:*:*:*:*:*:wordpress:*:*",
"matchCriteriaId": "A81F51B9-0C21-4F7E-876B-C09A66B9AE05",
"versionEndExcluding": "7.6.47",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "wpDiscuz before 7.6.47 contains a vote manipulation vulnerability that allows attackers to manipulate comment votes by obtaining fresh nonces and bypassing rate limiting through client-controlled headers. Attackers can vary User-Agent headers to reset rate limits, request nonces from the unauthenticated wpdGetNonce endpoint, and vote multiple times using IP rotation or reverse proxy header manipulation."
},
{
"lang": "es",
"value": "wpDiscuz antes de 7.6.47 contiene una vulnerabilidad de manipulaci\u00f3n de votos que permite a los atacantes manipular los votos de los comentarios al obtener nonces frescos y eludir la limitaci\u00f3n de velocidad a trav\u00e9s de encabezados controlados por el cliente. Los atacantes pueden variar los encabezados User-Agent para restablecer los l\u00edmites de velocidad, solicitar nonces desde el endpoint wpdGetNonce no autenticado y votar varias veces utilizando rotaci\u00f3n de IP o manipulaci\u00f3n de encabezados de proxy inverso."
}
],
"id": "CVE-2026-22199",
"lastModified": "2026-03-17T20:26:29.797",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "disclosure@vulncheck.com",
"type": "Primary"
}
],
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "disclosure@vulncheck.com",
"type": "Secondary"
}
]
},
"published": "2026-03-13T19:54:09.933",
"references": [
{
"source": "disclosure@vulncheck.com",
"tags": [
"Product"
],
"url": "https://wordpress.org/plugins/wpdiscuz/"
},
{
"source": "disclosure@vulncheck.com",
"tags": [
"Product",
"Release Notes"
],
"url": "https://wordpress.org/plugins/wpdiscuz/#developers"
},
{
"source": "disclosure@vulncheck.com",
"tags": [
"Third Party Advisory"
],
"url": "https://www.vulncheck.com/advisories/wpdiscuz-before-vote-manipulation-via-nonce-oracle-and-ip-rotation"
}
],
"sourceIdentifier": "disclosure@vulncheck.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-290"
}
],
"source": "disclosure@vulncheck.com",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
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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