CVE-2018-16831

highpriority · track · 25EPSS 0.027 · 86 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

2.66% (86th) EPSS

CVSS 7.1 · high

Is it mine?

6 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

Smarty before 3.1.33-dev-4 allows attackers to bypass the trusted_dir protection mechanism via a file:./../ substring in an include statement.

cvss

Technical severity, 0–10. One row per scoring source.

7.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.4–7.1

v2.07.1highAV:N/AC:M/Au:N/C:C/I:N/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 6.9

v3.05.9mediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 2.2 · impact 3.6

v3.05.9mediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · OSV

v3.05.4mediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.15.9mediumAV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USprimaryCWE-22USCWE-22US

affected products (6)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Canonical Ltd. Ubuntu≤ 21.10fstec_bduRU
Canonical Ltd. Ubuntu≤ 18.04 LTSfstec_bduRU
New Digital Group, Inc. Smarty≤ 3.1.33-dev-4fstec_bduRU
smarty smarty3.0.0 → 3.1.32nvdUScpe:2.3:a:smarty:smarty:*:*:*:*:*:*:*:*
Packagist smarty/smarty< 3.1.33osvUSpkg:composer/smarty/smarty

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-65j5-vpm7-6xp4Smarty Path Traversal Vulnerability2022-05-14ghsa · osvUS
Smarty before 3.1.33-dev-4 allows attackers to bypass the trusted_dir protection mechanism via a `file:./../` substring in an include statement.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd osv NVD CVE.org MITRE

published 2018-09-11modified 2026-06-17

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+12532 more

references (6)

External citations — patches, advisories, analysis.

scry

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