CVE-2021-36912 (GCVE-0-2021-36912)
Vulnerability from cvelistv5 – Published: 2022-05-06 16:48 – Updated: 2026-04-28 16:07
VLAI
EPSS
VEX
Title
Andrea Pernici News Sitemap for Google plugin <= 1.0.16 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability
Summary
Stored Cross-Site Scripting (XSS) vulnerability in Andrea Pernici News Sitemap for Google plugin <= 1.0.16 on WordPress, attackers must have contributor or higher user role.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-20 19:30 UTC
CWE
- CWE-79 - Cross-site Scripting (XSS)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://wordpress.org/plugins/google-news-sitemap/ | x_refsource_CONFIRM |
| https://patchstack.com/database/vulnerability/goo… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Andrea Pernici | Andrea Pernici News Sitemap for Google (WordPress plugin) |
Affected:
<= 1.0.16 , ≤ 1.0.16
(custom)
|
guessed |
Date Public
2022-05-04 00:00
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T01:01:59.885Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://wordpress.org/plugins/google-news-sitemap/"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://patchstack.com/database/vulnerability/google-news-sitemap/wordpress-andrea-pernici-news-sitemap-for-google-plugin-1-0-16-authenticated-stored-cross-site-scripting-xss-vulnerability"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-36912",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-20T19:30:35.336049Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-02-20T20:23:32.858Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Andrea Pernici News Sitemap for Google (WordPress plugin)",
"vendor": "Andrea Pernici",
"versions": [
{
"lessThanOrEqual": "1.0.16",
"status": "affected",
"version": "\u003c= 1.0.16",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Vulnerability discovered by John Castro aka mirphak (Pagely)"
}
],
"datePublic": "2022-05-04T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Stored Cross-Site Scripting (XSS) vulnerability in Andrea Pernici News Sitemap for Google plugin \u003c= 1.0.16 on WordPress, attackers must have contributor or higher user role."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Cross-site Scripting (XSS)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-28T16:07:37.415Z",
"orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
"shortName": "Patchstack"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://wordpress.org/plugins/google-news-sitemap/"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://patchstack.com/database/vulnerability/google-news-sitemap/wordpress-andrea-pernici-news-sitemap-for-google-plugin-1-0-16-authenticated-stored-cross-site-scripting-xss-vulnerability"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Andrea Pernici News Sitemap for Google plugin \u003c= 1.0.16 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability",
"x_generator": {
"engine": "Vulnogram 0.0.9"
},
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "audit@patchstack.com",
"DATE_PUBLIC": "2022-05-04T10:07:00.000Z",
"ID": "CVE-2021-36912",
"STATE": "PUBLIC",
"TITLE": "Andrea Pernici News Sitemap for Google plugin \u003c= 1.0.16 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Andrea Pernici News Sitemap for Google (WordPress plugin)",
"version": {
"version_data": [
{
"version_affected": "\u003c=",
"version_name": "\u003c= 1.0.16",
"version_value": "1.0.16"
}
]
}
}
]
},
"vendor_name": "Andrea Pernici"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "Vulnerability discovered by John Castro aka mirphak (Pagely)"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Stored Cross-Site Scripting (XSS) vulnerability in Andrea Pernici News Sitemap for Google plugin \u003c= 1.0.16 on WordPress, attackers must have contributor or higher user role."
}
]
},
"generator": {
"engine": "Vulnogram 0.0.9"
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-79 Cross-site Scripting (XSS)"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://wordpress.org/plugins/google-news-sitemap/",
"refsource": "CONFIRM",
"url": "https://wordpress.org/plugins/google-news-sitemap/"
},
{
"name": "https://patchstack.com/database/vulnerability/google-news-sitemap/wordpress-andrea-pernici-news-sitemap-for-google-plugin-1-0-16-authenticated-stored-cross-site-scripting-xss-vulnerability",
"refsource": "CONFIRM",
"url": "https://patchstack.com/database/vulnerability/google-news-sitemap/wordpress-andrea-pernici-news-sitemap-for-google-plugin-1-0-16-authenticated-stored-cross-site-scripting-xss-vulnerability"
}
]
},
"source": {
"discovery": "EXTERNAL"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
"assignerShortName": "Patchstack",
"cveId": "CVE-2021-36912",
"datePublished": "2022-05-06T16:48:38.122Z",
"dateReserved": "2021-07-19T00:00:00.000Z",
"dateUpdated": "2026-04-28T16:07:37.415Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-36912",
"date": "2026-09-30",
"epss": "0.00571",
"percentile": "0.45141"
},
"nvd": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:google-news-sitemap_project:google-news-sitemap:*:*:*:*:*:wordpress:*:*",
"matchCriteriaId": "02E73D8A-D6A1-4A8A-81AD-85A42A9BED80",
"versionEndIncluding": "1.0.16",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Stored Cross-Site Scripting (XSS) vulnerability in Andrea Pernici News Sitemap for Google plugin \u003c= 1.0.16 on WordPress, attackers must have contributor or higher user role."
},
{
"lang": "es",
"value": "Una vulnerabilidad de tipo Cross-Site Scripting (XSS) almacenado en el plugin Andrea Pernici News Sitemap for Google versiones anteriores a 1.0.16 incluy\u00e9ndola en WordPress, los atacantes deben tener el rol de usuario contributor o superior"
}
],
"id": "CVE-2021-36912",
"lastModified": "2024-11-21T06:14:17.403",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "NONE",
"baseScore": 3.5,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 6.8,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": true
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.3,
"impactScore": 2.7,
"source": "audit@patchstack.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.3,
"impactScore": 2.7,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2022-05-06T17:15:08.637",
"references": [
{
"source": "audit@patchstack.com",
"tags": [
"Third Party Advisory"
],
"url": "https://patchstack.com/database/vulnerability/google-news-sitemap/wordpress-andrea-pernici-news-sitemap-for-google-plugin-1-0-16-authenticated-stored-cross-site-scripting-xss-vulnerability"
},
{
"source": "audit@patchstack.com",
"tags": [
"Product",
"Third Party Advisory"
],
"url": "https://wordpress.org/plugins/google-news-sitemap/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://patchstack.com/database/vulnerability/google-news-sitemap/wordpress-andrea-pernici-news-sitemap-for-google-plugin-1-0-16-authenticated-stored-cross-site-scripting-xss-vulnerability"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Product",
"Third Party Advisory"
],
"url": "https://wordpress.org/plugins/google-news-sitemap/"
}
],
"sourceIdentifier": "audit@patchstack.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-79"
}
],
"source": "audit@patchstack.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-05-29T03:41:55+00:00",
"cve": "CVE-2021-36912",
"id": "CVE-2021-36912",
"initial_release_date": "2021-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Andrea Pernici News Sitemap for Google plugin \u003c= 1.0.16 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-36912.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T01:01:59.885Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://wordpress.org/plugins/google-news-sitemap/"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://patchstack.com/database/vulnerability/google-news-sitemap/wordpress-andrea-pernici-news-sitemap-for-google-plugin-1-0-16-authenticated-stored-cross-site-scripting-xss-vulnerability"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-36912",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-20T19:30:35.336049Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-02-20T19:30:36.720Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Andrea Pernici News Sitemap for Google (WordPress plugin)",
"vendor": "Andrea Pernici",
"versions": [
{
"lessThanOrEqual": "1.0.16",
"status": "affected",
"version": "\u003c= 1.0.16",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Vulnerability discovered by John Castro aka mirphak (Pagely)"
}
],
"datePublic": "2022-05-04T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Stored Cross-Site Scripting (XSS) vulnerability in Andrea Pernici News Sitemap for Google plugin \u003c= 1.0.16 on WordPress, attackers must have contributor or higher user role."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Cross-site Scripting (XSS)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-05-06T16:48:38.000Z",
"orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
"shortName": "Patchstack"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://wordpress.org/plugins/google-news-sitemap/"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://patchstack.com/database/vulnerability/google-news-sitemap/wordpress-andrea-pernici-news-sitemap-for-google-plugin-1-0-16-authenticated-stored-cross-site-scripting-xss-vulnerability"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Andrea Pernici News Sitemap for Google plugin \u003c= 1.0.16 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability",
"x_generator": {
"engine": "Vulnogram 0.0.9"
},
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "audit@patchstack.com",
"DATE_PUBLIC": "2022-05-04T10:07:00.000Z",
"ID": "CVE-2021-36912",
"STATE": "PUBLIC",
"TITLE": "Andrea Pernici News Sitemap for Google plugin \u003c= 1.0.16 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Andrea Pernici News Sitemap for Google (WordPress plugin)",
"version": {
"version_data": [
{
"version_affected": "\u003c=",
"version_name": "\u003c= 1.0.16",
"version_value": "1.0.16"
}
]
}
}
]
},
"vendor_name": "Andrea Pernici"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "Vulnerability discovered by John Castro aka mirphak (Pagely)"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Stored Cross-Site Scripting (XSS) vulnerability in Andrea Pernici News Sitemap for Google plugin \u003c= 1.0.16 on WordPress, attackers must have contributor or higher user role."
}
]
},
"generator": {
"engine": "Vulnogram 0.0.9"
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-79 Cross-site Scripting (XSS)"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://wordpress.org/plugins/google-news-sitemap/",
"refsource": "CONFIRM",
"url": "https://wordpress.org/plugins/google-news-sitemap/"
},
{
"name": "https://patchstack.com/database/vulnerability/google-news-sitemap/wordpress-andrea-pernici-news-sitemap-for-google-plugin-1-0-16-authenticated-stored-cross-site-scripting-xss-vulnerability",
"refsource": "CONFIRM",
"url": "https://patchstack.com/database/vulnerability/google-news-sitemap/wordpress-andrea-pernici-news-sitemap-for-google-plugin-1-0-16-authenticated-stored-cross-site-scripting-xss-vulnerability"
}
]
},
"source": {
"discovery": "EXTERNAL"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
"assignerShortName": "Patchstack",
"cveId": "CVE-2021-36912",
"datePublished": "2022-05-06T16:48:38.122Z",
"dateReserved": "2021-07-19T00:00:00.000Z",
"dateUpdated": "2025-02-20T20:23:32.858Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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…
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…