High severity · published Sep 4, 2026
CVE-2026-85599
Grav Shortcode Core before 6.2.5 Stored XSS via unescaped parameters
7.2
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
grav-plugin-shortcode-core · getgrav
before 6.2.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-85599
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-85599
github.com
https://github.com/getgrav/grav/security/advisories/GHSA-hvm8-wx3f-j774
www.vulncheck.com
https://www.vulncheck.com/advisories/grav-shortcode-core-before-6.2.5-stored-xss-via-unescaped-parameters
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