CVE-2023-6645 - Vulnerability Details - OpenCVE

The Post Grid Combo – 36+ Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the custom JS parameter in all versions up to, and including, 2.2.64 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor access or higher to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00231.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Pickplugins	Post Grid Combo

Configuration 1 [-]

cpe:2.3:a:pickplugins:post_grid_combo:*:*:*:*:*:wordpress:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2023-58868	The Post Grid Combo – 36+ Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the custom JS parameter in all versions up to, and including, 2.2.64 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor access or higher to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3010342%40post-grid%2Ftrunk&old=2999466%40post-grid%2Ftrunk&sfp_email=&sfph_mail=
https://www.wordfence.com/threat-intel/vulnerabilities/id/ab777672-6eef-4078-932d-24bb784107fa?source=cve

History

Wed, 18 Jun 2025 08:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Wordfence

Published: 2024-01-11T08:32:49.663Z

Updated: 2025-06-17T21:09:13.798Z

Reserved: 2023-12-08T20:55:13.445Z

Link: CVE-2023-6645

Vulnrichment

Updated: 2024-08-02T08:35:14.889Z

NVD

Status : Modified

Published: 2024-01-11T09:15:51.097

Modified: 2024-11-21T08:44:16.430

Link: CVE-2023-6645

Redhat

No data.

OpenCVE Enrichment

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-6645", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "state": "PUBLISHED", "assignerShortName": "Wordfence", "dateReserved": "2023-12-08T20:55:13.445Z", "datePublished": "2024-01-11T08:32:49.663Z", "dateUpdated": "2025-06-17T21:09:13.798Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2024-01-11T08:32:49.663Z"}, "affected": [{"vendor": "pickplugins", "product": "Post Grid, Form Maker, Popup Maker, WooCommerce Blocks, Post Blocks, Post Carousel \u2013 Combo Blocks", "versions": [{"version": "*", "status": "affected", "lessThanOrEqual": "2.2.64", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The Post Grid Combo \u2013 36+ Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the custom JS parameter in all versions up to, and including, 2.2.64 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor access or higher to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."}], "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ab777672-6eef-4078-932d-24bb784107fa?source=cve"}, {"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3010342%40post-grid%2Ftrunk&old=2999466%40post-grid%2Ftrunk&sfp_email=&sfph_mail="}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)"}]}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "baseScore": 6.4, "baseSeverity": "MEDIUM"}}], "credits": [{"lang": "en", "type": "finder", "value": "Rafshanzani Suhada"}], "timeline": [{"time": "2023-12-07T00:00:00.000+00:00", "lang": "en", "value": "Discovered"}, {"time": "2023-12-11T00:00:00.000+00:00", "lang": "en", "value": "Vendor Notified"}, {"time": "2023-12-15T00:00:00.000+00:00", "lang": "en", "value": "Disclosed"}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T08:35:14.889Z"}, "title": "CVE Program Container", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ab777672-6eef-4078-932d-24bb784107fa?source=cve", "tags": ["x_transferred"]}, {"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3010342%40post-grid%2Ftrunk&old=2999466%40post-grid%2Ftrunk&sfp_email=&sfph_mail=", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-6645", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-01-18T01:27:47.427238Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-06-17T21:09:13.798Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ab777672-6eef-4078-932d-24bb784107fa?source=cve", "tags": ["x_transferred"]}, {"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3010342%40post-grid%2Ftrunk&old=2999466%40post-grid%2Ftrunk&sfp_email=&sfph_mail=", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T08:35:14.889Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-6645", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-01-18T01:27:47.427238Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-06-17T21:04:37.071Z"}}], "cna": {"credits": [{"lang": "en", "type": "finder", "value": "Rafshanzani Suhada"}], "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 6.4, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"}}], "affected": [{"vendor": "pickplugins", "product": "Post Grid, Form Maker, Popup Maker, WooCommerce Blocks, Post Blocks, Post Carousel \u2013 Combo Blocks", "versions": [{"status": "affected", "version": "*", "versionType": "semver", "lessThanOrEqual": "2.2.64"}], "defaultStatus": "unaffected"}], "timeline": [{"lang": "en", "time": "2023-12-07T00:00:00.000+00:00", "value": "Discovered"}, {"lang": "en", "time": "2023-12-11T00:00:00.000+00:00", "value": "Vendor Notified"}, {"lang": "en", "time": "2023-12-15T00:00:00.000+00:00", "value": "Disclosed"}], "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ab777672-6eef-4078-932d-24bb784107fa?source=cve"}, {"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3010342%40post-grid%2Ftrunk&old=2999466%40post-grid%2Ftrunk&sfp_email=&sfph_mail="}], "descriptions": [{"lang": "en", "value": "The Post Grid Combo \u2013 36+ Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the custom JS parameter in all versions up to, and including, 2.2.64 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor access or higher to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)"}]}], "providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2024-01-11T08:32:49.663Z"}}}, "cveMetadata": {"cveId": "CVE-2023-6645", "state": "PUBLISHED", "dateUpdated": "2025-06-17T21:09:13.798Z", "dateReserved": "2023-12-08T20:55:13.445Z", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "datePublished": "2024-01-11T08:32:49.663Z", "assignerShortName": "Wordfence"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:pickplugins:post_grid_combo:*:*:*:*:*:wordpress:*:*", "matchCriteriaId": "1597234E-1C5F-410E-853F-A2330B32F958", "versionEndIncluding": "2.2.64", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "The Post Grid Combo \u2013 36+ Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the custom JS parameter in all versions up to, and including, 2.2.64 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor access or higher to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."}, {"lang": "es", "value": "El complemento Post Grid Combo \u2013 36+ Gutenberg Blocks para WordPress es vulnerable a Cross-Site Scripting almacenado a trav\u00e9s del par\u00e1metro JS personalizado en todas las versiones hasta la 2.2.64 incluida debido a una sanitizaci\u00f3n de entrada y un escape de salida insuficientes. Esto hace posible que atacantes autenticados, con acceso de colaborador o superior, inyecten scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina inyectada."}], "id": "CVE-2023-6645", "lastModified": "2024-11-21T08:44:16.430", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 2.7, "source": "security@wordfence.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": "2024-01-11T09:15:51.097", "references": [{"source": "security@wordfence.com", "tags": ["Product"], "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3010342%40post-grid%2Ftrunk&old=2999466%40post-grid%2Ftrunk&sfp_email=&sfph_mail="}, {"source": "security@wordfence.com", "tags": ["Third Party Advisory"], "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ab777672-6eef-4078-932d-24bb784107fa?source=cve"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product"], "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3010342%40post-grid%2Ftrunk&old=2999466%40post-grid%2Ftrunk&sfp_email=&sfph_mail="}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ab777672-6eef-4078-932d-24bb784107fa?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}