CVE-2026-60119
Hi.Events < 1.11.0 XSS via Event Title JSON.stringify Injection
- State
- Published
- Severity
- 5.1 Medium
- Published
- Jul 14, 2026
- Updated
- Jul 14, 2026
- Reserved
- Jul 8, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N | VulnCheck |
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
Hi.EventsHiEventsDev |
|
References
- Release Notesrelease-notes
- GitHub Security Advisory (GHSA-2ggx-79g6-2jmj)vendor-advisory
- Pull Requestissue-tracking
- Patch Commitpatch
- https://www.vulncheck.com/advisories/hi-events-beta-xss-via-event-title-json-stringify-injectionthird-party-advisory
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