Medium severity · published Dec 15, 2025
CVE-2025-66843
grav before v1.7.49.5 has a Stored Cross-Site Scripting (Stored XSS) vulnerability in the page editing functionality
5.4
CVSS
0.2%
EPSS
No
On KEV
Description
grav before v1.7.49.5 has a Stored Cross-Site Scripting (Stored XSS) vulnerability in the page editing functionality. An authenticated low-privileged user with permission to edit content can inject malicious JavaScript payloads into editable fields. The payload is stored on the server and later executed when any other user views or edits the affected page.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
Grav · Getgrav
before 1.7.49.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-66843
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-66843
Exploit
https://github.com/Yohane-Mashiro/grav_cve/issues/1
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