Auth bypass in Hieventsdev Hi.events
CVE-2026-60119
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (21.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Hieventsdev Hi.events — versions 0
Weakness classification (CWE)
References
- github.com/HiEventsDev/Hi.Events/commit/1e36b070771801ed7113255ef7b3a7f271a2a794 (patch)
- github.com/HiEventsDev/Hi.Events/pull/1260 (issue-tracking)
- github.com/HiEventsDev/Hi.Events/releases/tag/v.1.11.0-beta (release-notes)
- github.com/HiEventsDev/Hi.Events/security/advisories/GHSA-2ggx-79g6-2jmj (vendor-advisory)
- www.vulncheck.com/advisories/hi-events-beta-xss-via-event-title-json-stringify-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-60119?
- CVE-2026-60119 is a medium-severity vulnerability in Hieventsdev Hi.events, classified under Missing Authorization. CVSS score: 5.4/10. Published 2026-07-14.
- How severe is CVE-2026-60119?
- Medium severity. CVSS v3 base score is 5.4 out of 10.