CVE-2026-60119
MEDIUMHi.Events v1.10.0-beta XSS via Event Title JSON.stringify Injection
Title source: cnaDescription
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.
References (5)
Core 5
Core References
Release Notes release-notes
Release Notes
https://github.com/HiEventsDev/Hi.Events/releases/tag/v.1.11.0-beta
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-2ggx-79g6-2jmj)
https://github.com/HiEventsDev/Hi.Events/security/advisories/GHSA-2ggx-79g6-2jmj
Patch patch
Patch Commit
https://github.com/HiEventsDev/Hi.Events/commit/1e36b070771801ed7113255ef7b3a7f271a2a794
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/hi-events-beta-xss-via-event-title-json-stringify-injection
Scores
CVSS v3
5.4
EPSS
0.0017
EPSS Percentile
6.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-862
Status
published
Products (1)
HiEventsDev/Hi.Events
< 1.11.0
Published
Jul 14, 2026
Tracked Since
Jul 14, 2026