CVE-2023-4620

Booking Calendar < 9.7.3.1 - Unauthenticated Stored XSS

View on CVE.org

Published Oct 16, 2023 CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed

Description

The Booking Calendar WordPress plugin before 9.7.3.1 does not sanitize and escape some of its booking from data, allowing unauthenticated users to perform Stored Cross-Site Scripting attacks against administrators

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Unknown

Booking Calendar

unaffected

Version	Status	Constraints
`0`	affected	< 9.7.3.1

Configuration 1 [-]

cpe:2.3:a:wpbookingcalendar:booking_calendar:*:*:*:*:*:wordpress:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2023-54473	The Booking Calendar WordPress plugin before 9.7.3.1 does not sanitize and escape some of its booking from data, allowing unauthenticated users to perform Stored Cross-Site Scripting attacks against administrators

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.556% probability within 30 days)

Exploitation poc

Automatable no

Technical Impact partial

References

Link	Providers
https://wpscan.com/vulnerability/084e9494-2f9e-4420-9bf7-78a1a41433d7

History

May 2, 2025 6:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Wpbookingcalendar Booking Calendar

Weaknesses

No weakness.

Sources

CVE record Updated: May 2, 2025, 5:39 PM

Status: PUBLISHED
Assigner: WPScan
Published: Oct 16, 2023, 8:32 AM
Updated: May 2, 2025, 5:39 PM
Reserved: Aug 30, 2023, 11:56 AM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 7:31 AM

Updated: Aug 2, 2024, 7:31 AM

NVD Updated: Jun 17, 2026, 6:38 AM

Status: Modified
Published: Oct 16, 2023, 9:15 AM
Modified: Jun 17, 2026, 6:38 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-4620", "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "state": "PUBLISHED", "assignerShortName": "WPScan", "dateReserved": "2023-08-30T11:56:05.067Z", "datePublished": "2023-10-16T08:32:45.562Z", "dateUpdated": "2025-05-02T17:39:12.953Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "shortName": "WPScan", "dateUpdated": "2023-10-16T08:32:45.562Z"}, "title": "Booking Calendar < 9.7.3.1 - Unauthenticated Stored XSS", "problemTypes": [{"descriptions": [{"description": "CWE-79 Cross-Site Scripting (XSS)", "lang": "en", "type": "CWE"}]}], "affected": [{"vendor": "Unknown", "product": "Booking Calendar", "versions": [{"status": "affected", "versionType": "custom", "version": "0", "lessThan": "9.7.3.1"}], "defaultStatus": "unaffected", "collectionURL": "https://wordpress.org/plugins"}], "descriptions": [{"lang": "en", "value": "The Booking Calendar WordPress plugin before 9.7.3.1 does not sanitize and escape some of its booking from data, allowing unauthenticated users to perform Stored Cross-Site Scripting attacks against administrators"}], "references": [{"url": "https://wpscan.com/vulnerability/084e9494-2f9e-4420-9bf7-78a1a41433d7", "tags": ["exploit", "vdb-entry", "technical-description"]}], "credits": [{"lang": "en", "value": "Pablo Sanchez", "type": "finder"}, {"lang": "en", "value": "WPScan", "type": "coordinator"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "WPScan CVE Generator"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T07:31:06.628Z"}, "title": "CVE Program Container", "references": [{"url": "https://wpscan.com/vulnerability/084e9494-2f9e-4420-9bf7-78a1a41433d7", "tags": ["exploit", "vdb-entry", "technical-description", "x_transferred"]}]}, {"metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2025-04-23T13:28:33.173314Z", "id": "CVE-2023-4620", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-02T17:39:12.953Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://wpscan.com/vulnerability/084e9494-2f9e-4420-9bf7-78a1a41433d7", "tags": ["exploit", "vdb-entry", "technical-description", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T07:31:06.628Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2023-4620", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-04-23T13:28:33.173314Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-02T17:38:31.120Z"}}], "cna": {"title": "Booking Calendar < 9.7.3.1 - Unauthenticated Stored XSS", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Pablo Sanchez"}, {"lang": "en", "type": "coordinator", "value": "WPScan"}], "affected": [{"vendor": "Unknown", "product": "Booking Calendar", "versions": [{"status": "affected", "version": "0", "lessThan": "9.7.3.1", "versionType": "custom"}], "collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected"}], "references": [{"url": "https://wpscan.com/vulnerability/084e9494-2f9e-4420-9bf7-78a1a41433d7", "tags": ["exploit", "vdb-entry", "technical-description"]}], "x_generator": {"engine": "WPScan CVE Generator"}, "descriptions": [{"lang": "en", "value": "The Booking Calendar WordPress plugin before 9.7.3.1 does not sanitize and escape some of its booking from data, allowing unauthenticated users to perform Stored Cross-Site Scripting attacks against administrators"}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "description": "CWE-79 Cross-Site Scripting (XSS)"}]}], "providerMetadata": {"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "shortName": "WPScan", "dateUpdated": "2023-10-16T08:32:45.562Z"}}}, "cveMetadata": {"cveId": "CVE-2023-4620", "state": "PUBLISHED", "dateUpdated": "2025-05-02T17:39:12.953Z", "dateReserved": "2023-08-30T11:56:05.067Z", "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "datePublished": "2023-10-16T08:32:45.562Z", "assignerShortName": "WPScan"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected", "product": "Booking Calendar", "vendor": "Unknown", "versions": [{"lessThan": "9.7.3.1", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "contact@wpscan.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:wpbookingcalendar:booking_calendar:*:*:*:*:*:wordpress:*:*", "matchCriteriaId": "64B57519-F785-4B96-9AB7-E7C67C397254", "versionEndExcluding": "9.7.3.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Booking Calendar WordPress plugin before 9.7.3.1 does not sanitize and escape some of its booking from data, allowing unauthenticated users to perform Stored Cross-Site Scripting attacks against administrators"}, {"lang": "es", "value": "El complemento de WordPress Booking Calendar anterior a la versi\u00f3n 9.7.3.1 no sanitiza ni escapa algunas de sus reservas de los datos, lo que permite a usuarios no autenticados realizar ataques de Cross-Site Scripting (XSS) Almacenado contra administradores."}], "id": "CVE-2023-4620", "lastModified": "2026-06-17T06:38:14.163", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-4620", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-04-23T13:28:33.173314Z", "version": "2.0.3"}}]}, "published": "2023-10-16T09:15:11.627", "references": [{"source": "contact@wpscan.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://wpscan.com/vulnerability/084e9494-2f9e-4420-9bf7-78a1a41433d7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://wpscan.com/vulnerability/084e9494-2f9e-4420-9bf7-78a1a41433d7"}], "sourceIdentifier": "contact@wpscan.com", "vulnStatus": "Modified"}