Vulnerability · Published Sep 4, 2026 · Assigned by VulnCheck
CVE-2026-85599Grav Shortcode Core before 6.2.5 Stored XSS via unescaped parameters
High 7.2
In plain English
A high-severity cross-site scripting in grav-plugin-shortcode-core from getgrav. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).
Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.3%top 81.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Grav Shortcode Core before 6.2.5 contains stored cross-site scripting vulnerabilities in the [lorem] tag parameter and [details] summary parameter that are written to rendered pages without escaping. Attackers with page-edit access can inject arbitrary HTML and JavaScript that executes in the browsers of all page visitors, including administrators.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| getgrav | grav-plugin-shortcode-core | 0 – before 6.2.5 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
References
- GitHub Security Advisory (GHSA-hvm8-wx3f-j774) vendor-advisory
- VulnCheck Advisory: Grav Shortcode Core before 6.2.5 Stored XSS via unescaped parameters third-party-advisory