High severity · published May 11, 2026
CVE-2026-42611
Grav: Stored XSS via Tag Injection
8.9
CVSS
0.3%
EPSS
No
On KEV
Description
Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a low-privileged (with the ability to create a page) user can cause XSS with the injection of svg element. The XSS can further be escalated to dump the entire system information available under /admin/config/info whenever a Super Admin visits the page; which can further be chained with the use of admin-nonce to do a complete server compromise (RCE). This vulnerability is fixed in 2.0.0-beta.2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
Low
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
grav · getgrav
< 2.0.0-beta.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-42611
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-42611
Patch
https://github.com/getgrav/grav/commit/5a12f9be8314682c8713e569e330f11805d0a663
Exploit
https://github.com/getgrav/grav/security/advisories/GHSA-w8cg-7jcj-4vv2
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