What’s Vulnerable › Vulnerabilities

CVE-2018-13982

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-09-18 · updated 2026-06-17
• Weakness: CWE-22

Description

Smarty_Security::isTrustedResourceDir() in Smarty before 3.1.33 is prone to a path traversal vulnerability due to insufficient template code sanitization. This allows attackers controlling the executed template code to bypass the trusted directory security restriction and read arbitrary files.

Affected products

• Debian Linux: 9.0
• Smarty: before 3.1.33 — fixed in 3.1.33

How to fix

Upgrade to a fixed version: Smarty 3.1.33. Check the vendor advisory for mitigations.

References

• https://github.com/sbaresearch/advisories/tree/public/2018/SBA-ADV-20180420-01_Smarty_Path_Traversal
• https://github.com/smarty-php/smarty/commit/2e081a51b1effddb23f87952959139ac62654d50
• https://github.com/smarty-php/smarty/commit/8d21f38dc35c4cd6b31c2f23fc9b8e5adbc56dfe
• https://github.com/smarty-php/smarty/commit/bcedfd6b58bed4a7366336979ebaa5a240581531
• https://github.com/smarty-php/smarty/commit/c9dbe1d08c081912d02bd851d1d1b6388f6133d1
• https://github.com/smarty-php/smarty/commit/f9ca3c63d1250bb56b2bda609dcc9dd81f0065f8
• https://lists.debian.org/debian-lts-announce/2021/04/msg00004.html
• https://lists.debian.org/debian-lts-announce/2021/04/msg00014.html
• https://lists.debian.org/debian-lts-announce/2021/10/msg00015.html
• https://github.com/sbaresearch/advisories/tree/public/2018/SBA-ADV-20180420-01_Smarty_Path_Traversal
• https://github.com/smarty-php/smarty/commit/2e081a51b1effddb23f87952959139ac62654d50
• https://github.com/smarty-php/smarty/commit/8d21f38dc35c4cd6b31c2f23fc9b8e5adbc56dfe

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