JTL Shop < 5.7.2 Server-Side Template Injection via Smarty Renderer
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.3epss 0.6%
from disclosure to weapon22 days
Published on NVDJun 18
1st PoC+22d
exploitation probability
0.6%top 54% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
JTL Shop versions 5.2.0 through 5.7.1 contains a server-side template injection vulnerability that allows unauthenticated attackers to inject malicious template syntax due to unsanitized user-supplied input passed to the Smarty template engine. Attackers can exploit this flaw to read sensitive server-side values such as database credentials and encryption keys, and on versions 5.4.0 through 5.7.1, leverage registered Smarty modifiers including unserialize and file_get_contents to write a webshell to the web root and execute arbitrary commands as the web server user.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
JTL Software · JTL Shoppublic PoCs found — 1
githubgithub.com/shinthink/CVE-2026-54390★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.