Vulnerability · Published Jul 14, 2026 · Assigned by VulnCheck

CVE-2026-60119Hi.Events < 1.11.0 XSS via Event Title JSON.stringify Injection

Medium 5.4

In plain English

A medium-severity missing authorization in Hi.Events from HiEventsDev. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.3%top 77.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Hi.Events before 1.11.0 contains a cross-site scripting vulnerability that allows authenticated attackers with event creation or edit permissions to inject arbitrary HTML and JavaScript by embedding a malicious event title containing the </script> sequence, which is not escaped by JSON.stringify() when embedded in inline script tags. Attackers can craft an event title that breaks out of the script context in the application/ld+json structured data block or server-side rehydrated state, causing the payload to execute in the browser of any user who views the public event page, including unauthenticated visitors and authenticated administrators.

Affected products (as reported)

Vendor	Product	Versions
HiEventsDev	Hi.Events	0 – before 1.11.0

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

Release Notes release-notes
GitHub Security Advisory (GHSA-2ggx-79g6-2jmj) vendor-advisory
Pull Request issue-tracking
Patch Commit patch
https://www.vulncheck.com/advisories/hi-events-beta-xss-via-event-title-json-stringify-injection third-party-advisory