CVE-2026-75829 grav-plugin-api before 1.0.15 Twig SSTI via translate endpoint
Attackers with write permissions can inject Twig templates via the translate endpoint to execute arbitrary code on the server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-75829?
CVE-2026-75829 is a high-severity code injection vulnerability in getgrav grav, published on 18 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-1336
Which versions are affected by CVE-2026-75829?
How do I fix CVE-2026-75829?
No fix has been published for CVE-2026-75829 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-75829 being exploited?
There is no known exploitation of CVE-2026-75829 in the wild and no public exploit code.
Sources
Also known as GHSA-2jqg-x237-hwx2.