Vulnerability-Lookup

GHSA-MXRG-5554-PP4X

Vulnerability from github – Published: 2026-07-24 00:32 – Updated: 2026-07-24 00:32

Details

Cal.com (repository calcom/cal.diy) in versions <= 4.7.15 is vulnerable to cross-site scripting (XSS) on the publicly accessible single booking view (e.g., /booking/). Booking question (form field) labels are rendered via React's dangerouslySetInnerHTML without proper input sanitization or CSP, so an attacker who can create an event type with a malicious booking question label can inject arbitrary HTML/JavaScript that executes when a victim visits the booking view URL. Self-hosted instances with open registration are particularly at risk. The issue is fixed in version 4.7.16.

Severity

8.9 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L

9.3 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2024-58353"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-80"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-23T22:16:51Z",
    "severity": "CRITICAL"
  },
  "details": "Cal.com (repository calcom/cal.diy) in versions \u003c= 4.7.15 is vulnerable to cross-site scripting (XSS) on the publicly accessible single booking view (e.g., /booking/\u003cid\u003e). Booking question (form field) labels are rendered via React\u0027s dangerouslySetInnerHTML without proper input sanitization or CSP, so an attacker who can create an event type with a malicious booking question label can inject arbitrary HTML/JavaScript that executes when a victim visits the booking view URL. Self-hosted instances with open registration are particularly at risk. The issue is fixed in version 4.7.16.",
  "id": "GHSA-mxrg-5554-pp4x",
  "modified": "2026-07-24T00:32:33Z",
  "published": "2026-07-24T00:32:33Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/calcom/cal.diy/security/advisories/GHSA-vgj7-76cw-h6f8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-58353"
    },
    {
      "type": "WEB",
      "url": "https://github.com/calcom/cal.diy/commit/00689fda0a30b8f933c096f02c1fe092a4206def"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/cal-com-through-cross-site-scripting-via-booking-questions"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2024-58353 (GCVE-0-2024-58353)

Vulnerability from cvelistv5 – Published: 2026-07-23 21:16 – Updated: 2026-07-23 21:16

Title

Cal.com through 4.7.15 Cross-Site Scripting via booking questions

Summary

Cal.com (repository calcom/cal.diy) in versions <= 4.7.15 is vulnerable to cross-site scripting (XSS) on the publicly accessible single booking view (e.g., /booking/<id>). Booking question (form field) labels are rendered via React's dangerouslySetInnerHTML without proper input sanitization or CSP, so an attacker who can create an event type with a malicious booking question label can inject arbitrary HTML/JavaScript that executes when a victim visits the booking view URL. Self-hosted instances with open registration are particularly at risk. The issue is fixed in version 4.7.16.

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L

8.9 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L

CWE

CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

Assigner

VulnCheck

References

3 references

URL	Tags
https://github.com/calcom/cal.diy/security/adviso…	vendor-advisory
https://github.com/calcom/cal.diy/commit/00689fda…	patch
https://www.vulncheck.com/advisories/cal-com-thro…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
calcom	cal.diy	Affected: 0 , ≤ 4.7.15 (semver)

Date Public

2024-12-04 00:00

Credits

xyzeva

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "cal.diy",
          "vendor": "calcom",
          "versions": [
            {
              "lessThanOrEqual": "4.7.15",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "xyzeva"
        }
      ],
      "datePublic": "2024-12-04T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Cal.com (repository calcom/cal.diy) in versions \u003c= 4.7.15 is vulnerable to cross-site scripting (XSS) on the publicly accessible single booking view (e.g., /booking/\u003cid\u003e). Booking question (form field) labels are rendered via React\u0027s dangerouslySetInnerHTML without proper input sanitization or CSP, so an attacker who can create an event type with a malicious booking question label can inject arbitrary HTML/JavaScript that executes when a victim visits the booking view URL. Self-hosted instances with open registration are particularly at risk. The issue is fixed in version 4.7.16."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "LOW",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.9,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-80",
              "description": "Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-23T21:16:42.870Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-vgj7-76cw-h6f8)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/calcom/cal.diy/security/advisories/GHSA-vgj7-76cw-h6f8"
        },
        {
          "name": "https://github.com/calcom/cal.diy/commit/00689fda0a30b8f933c096f02c1fe092a4206def",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/calcom/cal.diy/commit/00689fda0a30b8f933c096f02c1fe092a4206def"
        },
        {
          "name": "VulnCheck Advisory: Cal.com through 4.7.15 Cross-Site Scripting via booking questions",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/cal-com-through-cross-site-scripting-via-booking-questions"
        }
      ],
      "title": "Cal.com through 4.7.15 Cross-Site Scripting via booking questions",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2024-58353",
    "datePublished": "2026-07-23T21:16:42.870Z",
    "dateReserved": "2026-06-08T15:20:35.497Z",
    "dateUpdated": "2026-07-23T21:16:42.870Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

GHSA-MXRG-5554-PP4X

CVE-2024-58353 (GCVE-0-2024-58353)

Tags

Sightings

Nomenclature