CVE-2021-43676Network attack vector

Restricted-directory escape via undisclosed Smarty path handling

Published Dec 3, 2021 · Updated Aug 4, 2024

Path traversal in matyhtf framework before 3.0.6 allows remote attackers to cause unspecified impact through Smarty.class.php path handling. Public records identify Smarty.class.php as the affected locus but do not disclose which input reaches it or which pathname operation fails to confine traversal. No public source establishes the reachable request, exposed files, write capability, or service effect, so the consequence remains unspecified.

CVSS severity9.8
Critical
EPSS probability1.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in matyhtf framework before 3.0.6 allows remote attackers to cause unspecified impact through Smarty.class.php path handling. Public records identify Smarty.class.php as the affected locus but do not disclose which input reaches it or which pathname operation fails to confine traversal. No public source establishes the reachable request, exposed files, write capability, or service effect, so the consequence remains unspecified.

The record

CVE
CVE-2021-43676
Published
Dec 3, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 3, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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