CVE-2021-24280 (GCVE-0-2021-24280)
Vulnerability from cvelistv5 – Published: 2021-05-14 11:38 – Updated: 2024-08-03 19:28
VLAI
EPSS
VEX
Title
Redirection for Contact Form 7 < 2.3.4 - Authenticated PHP Object Injection
Summary
In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, any authenticated user, such as a subscriber, could use the import_from_debug AJAX action to inject PHP objects.
Severity
8.8 (High)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.wordfence.com/blog/2021/04/severe-vul… | x_refsource_MISC |
| https://wpscan.com/vulnerability/db4ba6b0-887e-4e… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Query Solutions | Redirection for Contact Form 7 |
Affected:
2.3.4 , < 2.3.4
(custom)
|
guessed |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T19:28:23.438Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.wordfence.com/blog/2021/04/severe-vulnerabilities-patched-in-redirection-for-contact-form-7-plugin/"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://wpscan.com/vulnerability/db4ba6b0-887e-4ec1-8935-ab21d369b329"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "Redirection for Contact Form 7",
"vendor": "Query Solutions",
"versions": [
{
"lessThan": "2.3.4",
"status": "affected",
"version": "2.3.4",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Chloe Chamberland"
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, any authenticated user, such as a subscriber, could use the import_from_debug AJAX action to inject PHP objects."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502 Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-05-14T11:38:17.000Z",
"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
"shortName": "WPScan"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.wordfence.com/blog/2021/04/severe-vulnerabilities-patched-in-redirection-for-contact-form-7-plugin/"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://wpscan.com/vulnerability/db4ba6b0-887e-4ec1-8935-ab21d369b329"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Redirection for Contact Form 7 \u003c 2.3.4 - Authenticated PHP Object Injection",
"x_generator": "WPScan CVE Generator",
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "contact@wpscan.com",
"ID": "CVE-2021-24280",
"STATE": "PUBLIC",
"TITLE": "Redirection for Contact Form 7 \u003c 2.3.4 - Authenticated PHP Object Injection"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Redirection for Contact Form 7",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "2.3.4",
"version_value": "2.3.4"
}
]
}
}
]
},
"vendor_name": "Query Solutions"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "Chloe Chamberland"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, any authenticated user, such as a subscriber, could use the import_from_debug AJAX action to inject PHP objects."
}
]
},
"generator": "WPScan CVE Generator",
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-502 Deserialization of Untrusted Data"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.wordfence.com/blog/2021/04/severe-vulnerabilities-patched-in-redirection-for-contact-form-7-plugin/",
"refsource": "MISC",
"url": "https://www.wordfence.com/blog/2021/04/severe-vulnerabilities-patched-in-redirection-for-contact-form-7-plugin/"
},
{
"name": "https://wpscan.com/vulnerability/db4ba6b0-887e-4ec1-8935-ab21d369b329",
"refsource": "CONFIRM",
"url": "https://wpscan.com/vulnerability/db4ba6b0-887e-4ec1-8935-ab21d369b329"
}
]
},
"source": {
"discovery": "UNKNOWN"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
"assignerShortName": "WPScan",
"cveId": "CVE-2021-24280",
"datePublished": "2021-05-14T11:38:17.000Z",
"dateReserved": "2021-01-14T00:00:00.000Z",
"dateUpdated": "2024-08-03T19:28:23.438Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-24280",
"date": "2026-11-04",
"epss": "0.01967",
"percentile": "0.80429"
},
"nvd": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:querysol:redirection_for_contact_form_7:*:*:*:*:*:wordpress:*:*",
"matchCriteriaId": "F3E1A627-7160-4591-944C-5AEA2D9B3C58",
"versionEndExcluding": "2.3.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, any authenticated user, such as a subscriber, could use the import_from_debug AJAX action to inject PHP objects."
},
{
"lang": "es",
"value": "En el plugin de WordPress Redirection for Contact Form versiones 7 anteriores a 2.3.4, cualquier usuario autenticado, como un suscriptor, pod\u00eda usar la acci\u00f3n AJAX import_from_debug para inyectar objetos PHP"
}
],
"id": "CVE-2021-24280",
"lastModified": "2024-11-21T05:52:45.013",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2021-05-14T12:15:08.260",
"references": [
{
"source": "contact@wpscan.com",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://wpscan.com/vulnerability/db4ba6b0-887e-4ec1-8935-ab21d369b329"
},
{
"source": "contact@wpscan.com",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://www.wordfence.com/blog/2021/04/severe-vulnerabilities-patched-in-redirection-for-contact-form-7-plugin/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://wpscan.com/vulnerability/db4ba6b0-887e-4ec1-8935-ab21d369b329"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://www.wordfence.com/blog/2021/04/severe-vulnerabilities-patched-in-redirection-for-contact-form-7-plugin/"
}
],
"sourceIdentifier": "contact@wpscan.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-502"
}
],
"source": "contact@wpscan.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-502"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-03-27T14:42:33+00:00",
"cve": "CVE-2021-24280",
"id": "CVE-2021-24280",
"initial_release_date": "2021-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Redirection for Contact Form 7 \u003c 2.3.4 - Authenticated PHP Object Injection",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-24280.json",
"version": "3"
}
}
}
Loading…
Loading…
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.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
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.