CVE-2024-58353Disclosure

LOWCVSS 9.3 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-80

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

3 mentions across 2 observed days
Momentum state: stable

What's happening

Technical details provided in 3 signals
Disclosure: 2 classified signals
General: 1 classified signal
Peaked 1d ago at 2 mentions (2026-07-23); latest day: 1
3 total mentions across 2 days

Deep dive

Activity timeline3 mentions / 2d

Signal classification2 categories

Disclosure

266.7%

General

133.3%

Referenced assets5 URLs

By indicator

Classification over time

Date	Total	Labels

2026-07-23	2	Disclosure2
2026-07-24	1	General1

Full discourse3 posts

Vulmon Vulnerability Feed@VulmonFeeds91d
General
CVE-2024-58353 Cross-Site Scripting in http://Cal.com Versions 4.7.15 and Below via Boo... https://vulmon.com/vulnerabilitydetails?qid=CVE-2024-58353 Vulnerability Alert Subscriptions: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=1
Post summary
The tweet announces CVE‑2024‑58353 as an XSS vulnerability in Cal.com but provides no PoC, exploit, patch, or evidence of active exploitation, making it a general notification.
00000121
4.1K followersView on X
Infoflowcloud@infoflowcloud91d
Disclosure
🚨*CVE* CVE-2024-58353 http://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/<… https://www.cve.org/CVERecord?id=CVE-2024-58353 ----- Traducción: CV… http://infoflow.cloud`
Post summary
CVE-2024-58353 is a cross‑site scripting flaw in Cal.com up to version 4.7.15, exposing a publicly accessible booking view.
0000024
94 followersView on X
CVE@CVEnew91d
Disclosure
CVE-2024-58353 http://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/<… https://www.cve.org/CVERecord?id=CVE-2024-58353
Post summary
The note highlights an XSS vulnerability (CVE‑2024‑58353) in Cal.com versions ≤4.7.15 affecting the booking view, but provides none of the usual PoC, exploitation, or mitigation details.
00000725
57.9K followersView on X

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