← Vulnerability feed

Vulnerability record · CVE-2024-58355 · published 23 July 2026

CVE-2024-58355: Cal.com (calcom/cal.diy) versions through 4.7.15 contain a stored cross-site scripting vulnerability.

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.

9.3 CVSS 4.0 Critical EPSS 0.42% · top 66.7% CWE-80 · CWE-80 Deferred
9.3CVSS 4.0 base score
0.42%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
30 Jul 2026Last modified by NVD

Description

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.

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:

References

LinkTags
https://github.com/calcom/cal.diy/commit/00689fda0a30b8f933c096f02c1fe092a4206def
https://github.com/calcom/cal.diy/security/advisories/GHSA-vgj7-76cw-h6f8
https://www.vulncheck.com/advisories/cal-com-through-cross-site-scripting-via-booking-questions-2
https://github.com/calcom/cal.diy/security/advisories/GHSA-vgj7-76cw-h6f8

Track CVE-2024-58355 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2026-34486Apache Tomcat EncryptInterceptor bypass exposes sensitive dataApache Tomcat contains a missing encryption of sensitive data flaw: the fix for CVE-2026-29146 can be bypassed, allowing the EncryptInterceptor to be…KEVEPSS 6.6%analysed7.8CVE-2026-21514Microsoft Word security feature bypass via untrusted inputMicrosoft Word relies on untrusted inputs when making a security decision, allowing an attacker to bypass a security feature. The flaw affects Micros…KEVEPSS 1.5%analysed7.8CVE-2026-21509Microsoft Office untrusted input security feature bypassMicrosoft Office relies on untrusted inputs when making a security decision, letting an unauthorized attacker bypass a security feature locally. The …KEVEPSS 73%analysed6.1CVE-2020-13965Roundcube Webmail XSS via malicious XML attachment previewRoundcube Webmail before 1.3.12 and 1.4.x before 1.4.5 allows cross-site scripting because text/xml is among the allowed types for attachment preview…KEVEPSS 77%analysed6.1CVE-2018-19953QNAP QTS File Station cross-site scripting flawQNAP QTS contains a cross-site scripting vulnerability in File Station that lets remote attackers inject malicious code. It matters because the flaw …KEVEPSS 29%analysed5.4CVE-2018-19943QNAP QTS File Station cross-site scriptingQNAP QTS contains a cross-site scripting flaw in File Station that lets a remote attacker inject malicious code. It matters because the vendor has fi…KEVEPSS 21%analysed

Source: NIST National Vulnerability Database (record CVE-2024-58355), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.