High severity · published Aug 18, 2026
CVE-2026-75829
grav-plugin-api before 1.0.15 Twig SSTI via translate endpoint
8.1
CVSS
0.4%
EPSS
No
On KEV
Description
grav-plugin-api versions before 1.0.15 fail to validate Twig content in the translate() endpoint, allowing attackers with api.pages.write permission to persist pages with process.twig enabled. Attackers can submit crafted header and content parameters to execute server-side template injection payloads that are evaluated at render time.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
grav · getgrav
before 1.0.15 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-75829
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-75829
github.com
https://github.com/getgrav/grav/security/advisories/GHSA-w94c-jmg4-w4c9
www.vulncheck.com
https://www.vulncheck.com/advisories/grav-plugin-api-before-twig-ssti-via-translate-endpoint
More from grav
9.9
CVE-2024-34082
Grav is a file-based Web platform
9.8
CVE-2026-80203
Grav before 1.0.18 Authentication Bypass via Scoped API Key
9.8
CVE-2026-56710
Grav Login Plugin before 1.0.16 Privilege Escalation via Unlock
9.8
CVE-2026-65008
Grav before 2.0.7 Remote Code Execution via Blueprint dynamicData
9.8
CVE-2021-47812
GravCMS 1.10.7 - Arbitrary YAML Write/Update (Unauthenticated) (2)