CVE-2021-4380 (GCVE-0-2021-4380)
Vulnerability from cvelistv5 – Published: 2023-06-07 12:43 – Updated: 2026-04-08 17:29
VLAI
EPSS
VEX
Title
Pinterest Automatic <= 4.14.3 - Unuathenticated Arbitrary Options Update
Summary
The Pinterest Automatic plugin for WordPress is vulnerable to authorization bypass due to missing capability checks on the 'wp_pinterest_automatic_parse_request' function and the 'process_form.php' script in versions up to, and including, 1.14.3. This makes it possible for unauthenticated attackers to update arbitrary options on a site that can be used to create new administrative user accounts or redirect unsuspecting site visitors.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-12-26 17:40 UTC
CWE
- CWE-284 - Improper Access Control
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| ValvePress | Pinterest Automatic |
Affected:
0 , ≤ 4.14.3
(semver)
|
guessed |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T17:23:10.720Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e4fdc902-4cfe-4116-a294-9a0fcb2de346?source=cve"
},
{
"tags": [
"x_transferred"
],
"url": "https://blog.nintechnet.com/critical-vulnerability-fixed-in-wordpress-pinterest-automatic-plugin/"
},
{
"tags": [
"x_transferred"
],
"url": "https://wpscan.com/vulnerability/ffd344fd-de2c-4f27-8932-41aa0a3c3d05"
},
{
"tags": [
"x_transferred"
],
"url": "https://www.acunetix.com/vulnerabilities/web/wordpress-plugin-pinterest-automatic-pin-security-bypass-4-14-3/"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-4380",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-12-26T17:40:23.728370Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-12-28T00:52:32.174Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Pinterest Automatic",
"vendor": "ValvePress",
"versions": [
{
"lessThanOrEqual": "4.14.3",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Jerome Bruandet"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Pinterest Automatic plugin for WordPress is vulnerable to authorization bypass due to missing capability checks on the \u0027wp_pinterest_automatic_parse_request\u0027 function and the \u0027process_form.php\u0027 script in versions up to, and including, 1.14.3. This makes it possible for unauthenticated attackers to update arbitrary options on a site that can be used to create new administrative user accounts or redirect unsuspecting site visitors."
}
],
"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-284",
"description": "CWE-284 Improper Access Control",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-08T17:29:44.896Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e4fdc902-4cfe-4116-a294-9a0fcb2de346?source=cve"
},
{
"url": "https://blog.nintechnet.com/critical-vulnerability-fixed-in-wordpress-pinterest-automatic-plugin/"
},
{
"url": "https://wpscan.com/vulnerability/ffd344fd-de2c-4f27-8932-41aa0a3c3d05"
},
{
"url": "https://www.acunetix.com/vulnerabilities/web/wordpress-plugin-pinterest-automatic-pin-security-bypass-4-14-3/"
}
],
"timeline": [
{
"lang": "en",
"time": "2021-09-06T00:00:00.000Z",
"value": "Disclosed"
}
],
"title": "Pinterest Automatic \u003c= 4.14.3 - Unuathenticated Arbitrary Options Update"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2021-4380",
"datePublished": "2023-06-07T12:43:13.283Z",
"dateReserved": "2023-06-06T13:25:14.618Z",
"dateUpdated": "2026-04-08T17:29:44.896Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-4380",
"date": "2026-09-18",
"epss": "0.04491",
"percentile": "0.9103"
},
"fkie_nvd": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:valvepress:pinterest_automatic_pin:*:*:*:*:*:wordpress:*:*",
"matchCriteriaId": "9E16E725-2DED-45D8-9051-0167C9DA03E8",
"versionEndExcluding": "4.14.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The Pinterest Automatic plugin for WordPress is vulnerable to authorization bypass due to missing capability checks on the \u0027wp_pinterest_automatic_parse_request\u0027 function and the \u0027process_form.php\u0027 script in versions up to, and including, 1.14.3. This makes it possible for unauthenticated attackers to update arbitrary options on a site that can be used to create new administrative user accounts or redirect unsuspecting site visitors."
}
],
"id": "CVE-2021-4380",
"lastModified": "2024-11-21T06:37:33.177",
"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"
},
{
"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": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2023-06-07T13:15:09.623",
"references": [
{
"source": "security@wordfence.com",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://blog.nintechnet.com/critical-vulnerability-fixed-in-wordpress-pinterest-automatic-plugin/"
},
{
"source": "security@wordfence.com",
"tags": [
"Third Party Advisory"
],
"url": "https://wpscan.com/vulnerability/ffd344fd-de2c-4f27-8932-41aa0a3c3d05"
},
{
"source": "security@wordfence.com",
"tags": [
"Third Party Advisory"
],
"url": "https://www.acunetix.com/vulnerabilities/web/wordpress-plugin-pinterest-automatic-pin-security-bypass-4-14-3/"
},
{
"source": "security@wordfence.com",
"tags": [
"Third Party Advisory"
],
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e4fdc902-4cfe-4116-a294-9a0fcb2de346?source=cve"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://blog.nintechnet.com/critical-vulnerability-fixed-in-wordpress-pinterest-automatic-plugin/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://wpscan.com/vulnerability/ffd344fd-de2c-4f27-8932-41aa0a3c3d05"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://www.acunetix.com/vulnerabilities/web/wordpress-plugin-pinterest-automatic-pin-security-bypass-4-14-3/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e4fdc902-4cfe-4116-a294-9a0fcb2de346?source=cve"
}
],
"sourceIdentifier": "security@wordfence.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Pinterest Automatic",
"vendor": "ValvePress",
"versions": [
{
"lessThanOrEqual": "4.14.3",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "security@wordfence.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:valvepress:pinterest_automatic_pin:*:*:*:*:*:wordpress:*:*",
"matchCriteriaId": "9E16E725-2DED-45D8-9051-0167C9DA03E8",
"versionEndExcluding": "4.14.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The Pinterest Automatic plugin for WordPress is vulnerable to authorization bypass due to missing capability checks on the \u0027wp_pinterest_automatic_parse_request\u0027 function and the \u0027process_form.php\u0027 script in versions up to, and including, 1.14.3. This makes it possible for unauthenticated attackers to update arbitrary options on a site that can be used to create new administrative user accounts or redirect unsuspecting site visitors."
}
],
"id": "CVE-2021-4380",
"lastModified": "2026-06-17T04:19:36.820",
"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"
},
{
"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": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2021-4380",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-12-26T17:40:23.728370Z",
"version": "2.0.3"
}
}
]
},
"published": "2023-06-07T13:15:09.623",
"references": [
{
"source": "security@wordfence.com",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://blog.nintechnet.com/critical-vulnerability-fixed-in-wordpress-pinterest-automatic-plugin/"
},
{
"source": "security@wordfence.com",
"tags": [
"Third Party Advisory"
],
"url": "https://wpscan.com/vulnerability/ffd344fd-de2c-4f27-8932-41aa0a3c3d05"
},
{
"source": "security@wordfence.com",
"tags": [
"Third Party Advisory"
],
"url": "https://www.acunetix.com/vulnerabilities/web/wordpress-plugin-pinterest-automatic-pin-security-bypass-4-14-3/"
},
{
"source": "security@wordfence.com",
"tags": [
"Third Party Advisory"
],
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e4fdc902-4cfe-4116-a294-9a0fcb2de346?source=cve"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://blog.nintechnet.com/critical-vulnerability-fixed-in-wordpress-pinterest-automatic-plugin/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://wpscan.com/vulnerability/ffd344fd-de2c-4f27-8932-41aa0a3c3d05"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://www.acunetix.com/vulnerabilities/web/wordpress-plugin-pinterest-automatic-pin-security-bypass-4-14-3/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e4fdc902-4cfe-4116-a294-9a0fcb2de346?source=cve"
}
],
"sourceIdentifier": "security@wordfence.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-284"
}
],
"source": "security@wordfence.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-04-08T19:27:52+00:00",
"cve": "CVE-2021-4380",
"id": "CVE-2021-4380",
"initial_release_date": "2021-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Pinterest Automatic \u003c= 4.14.3 - Unuathenticated Arbitrary Options Update",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-4380.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T17:23:10.720Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e4fdc902-4cfe-4116-a294-9a0fcb2de346?source=cve"
},
{
"tags": [
"x_transferred"
],
"url": "https://blog.nintechnet.com/critical-vulnerability-fixed-in-wordpress-pinterest-automatic-plugin/"
},
{
"tags": [
"x_transferred"
],
"url": "https://wpscan.com/vulnerability/ffd344fd-de2c-4f27-8932-41aa0a3c3d05"
},
{
"tags": [
"x_transferred"
],
"url": "https://www.acunetix.com/vulnerabilities/web/wordpress-plugin-pinterest-automatic-pin-security-bypass-4-14-3/"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-4380",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-12-26T17:40:23.728370Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-12-26T17:40:24.998Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Pinterest Automatic",
"vendor": "ValvePress",
"versions": [
{
"lessThanOrEqual": "4.14.3",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Jerome Bruandet"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Pinterest Automatic plugin for WordPress is vulnerable to authorization bypass due to missing capability checks on the \u0027wp_pinterest_automatic_parse_request\u0027 function and the \u0027process_form.php\u0027 script in versions up to, and including, 1.14.3. This makes it possible for unauthenticated attackers to update arbitrary options on a site that can be used to create new administrative user accounts or redirect unsuspecting site visitors."
}
],
"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-284",
"description": "CWE-284 Improper Access Control",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-08T17:29:44.896Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e4fdc902-4cfe-4116-a294-9a0fcb2de346?source=cve"
},
{
"url": "https://blog.nintechnet.com/critical-vulnerability-fixed-in-wordpress-pinterest-automatic-plugin/"
},
{
"url": "https://wpscan.com/vulnerability/ffd344fd-de2c-4f27-8932-41aa0a3c3d05"
},
{
"url": "https://www.acunetix.com/vulnerabilities/web/wordpress-plugin-pinterest-automatic-pin-security-bypass-4-14-3/"
}
],
"timeline": [
{
"lang": "en",
"time": "2021-09-06T00:00:00.000Z",
"value": "Disclosed"
}
],
"title": "Pinterest Automatic \u003c= 4.14.3 - Unuathenticated Arbitrary Options Update"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2021-4380",
"datePublished": "2023-06-07T12:43:13.283Z",
"dateReserved": "2023-06-06T13:25:14.618Z",
"dateUpdated": "2026-04-08T17:29:44.896Z",
"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…