Vulnerability-Lookup

CVE-2024-58355 (GCVE-0-2024-58355)

Vulnerability from cvelistv5 – Published: 2026-07-23 21:16 – Updated: 2026-07-28 01:47

Title

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

Summary

Cal.com (calcom/cal.diy) versions through 4.7.15 contain a stored cross-site scripting vulnerability. The single booking view (e.g., https://app.cal.com/booking/<id>) renders booking-question field labels via React's dangerouslySetInnerHTML without sanitizing or escaping user input. An attacker who can create an event type with a malicious booking-question label can inject arbitrary HTML/JavaScript that executes when a victim opens the crafted booking URL. The issue is fixed in v4.7.16.

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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-24 13:38 UTC

CWE

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

Assigner

VulnCheck mitre root

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	CPE status
calcom	cal.diy	Affected: 0 , ≤ 4.7.15 (semver) cpe:2.3:a:cal:cal.com::::::::

Date Public

2024-12-04 00:00

Credits

xyzeva

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2024-58355

Vulnerability from fkie_nvd - Published: 2026-07-23 22:16 - Updated: 2026-07-30 16:41

Severity

8.9 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/calcom/cal.diy/commit/00689fda0a30b8f933c096f02c1fe092a4206def
	disclosure@vulncheck.com	https://github.com/calcom/cal.diy/security/advisories/GHSA-vgj7-76cw-h6f8
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/cal-com-through-cross-site-scripting-via-booking-questions-2
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/calcom/cal.diy/security/advisories/GHSA-vgj7-76cw-h6f8

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/calcom/cal.diy/security/advisories/GHSA-vgj7-76cw-h6f8"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-80"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-884J-PVGH-233Q

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

Details

Cal.com (calcom/cal.diy) versions through 4.7.15 contain a stored cross-site scripting vulnerability. The single booking view (e.g., https://app.cal.com/booking/) renders booking-question field labels via React's dangerouslySetInnerHTML without sanitizing or escaping user input. An attacker who can create an event type with a malicious booking-question label can inject arbitrary HTML/JavaScript that executes when a victim opens the crafted booking URL. The issue is fixed in v4.7.16.

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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-58355"
  ],
  "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 (calcom/cal.diy) versions through 4.7.15 contain a stored cross-site scripting vulnerability. The single booking view (e.g., https://app.cal.com/booking/\u003cid\u003e) renders booking-question field labels via React\u0027s dangerouslySetInnerHTML without sanitizing or escaping user input. An attacker who can create an event type with a malicious booking-question label can inject arbitrary HTML/JavaScript that executes when a victim opens the crafted booking URL. The issue is fixed in v4.7.16.",
  "id": "GHSA-884j-pvgh-233q",
  "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-2024-58355"
    },
    {
      "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-2"
    }
  ],
  "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"
    }
  ]
}

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.
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.

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.

Action not permitted

CVE-2024-58355 (GCVE-0-2024-58355)

FKIE_CVE-2024-58355

GHSA-884J-PVGH-233Q

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Sightings

Nomenclature

Related by attack behaviour