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CVE-2026-103537

5.4 medium SSVC exploitation: none Deferred
NVD · CVE.org

Thelia 2.6.1 contains an absolute path traversal vulnerability in its Smarty template handling that enables SSTI and remote code execution. The `checkTemplate()` validation restricts relative directory traversal sequences such as `../` but does not reject absolute paths, allowing an authorized user to supply an arbitrary filesystem path as a template. Smarty then loads and compiles the referenced file without an effective security policy, so depending on filesystem layout and deployment configuration, template code in the file can be executed with the web server's privileges.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 3

  1. CwesCWE-94, CWE-1336NVD modified 2026-10-15 18:17
  2. CVSS5.4 (v3.1, CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N)NVD modified 2026-10-15 18:17
  3. First seenunscoredNVD modified 2026-10-13 13:51

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 1