CVE-2023-51645Network attack vector

Remote code execution via unvalidated archive paths

Published Nov 22, 2024 · Updated Nov 25, 2024

Path traversal in Allegra 7.5.0 build 29 allows remote attackers to execute code as LOCAL SERVICE through a crafted archive path. The unzipFile method passes a user-supplied path into file operations without validating that extracted files remain within the intended directory. Authentication ordinarily gates the method, but the documented authentication bypass removes that barrier and permits code execution with the service account's privileges.

CVSS severity7.2
High
EPSS probability1.84%
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 Allegra 7.5.0 build 29 allows remote attackers to execute code as LOCAL SERVICE through a crafted archive path. The unzipFile method passes a user-supplied path into file operations without validating that extracted files remain within the intended directory. Authentication ordinarily gates the method, but the documented authentication bypass removes that barrier and permits code execution with the service account's privileges.

The record

CVE
CVE-2023-51645
Published
Nov 22, 2024
Updated
Nov 25, 2024
Vendor
Alltena GmbH
Product
Allegra
Classifications
CWE-22, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 25, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.5.0build29
  2. Affected versionversion=7.5.0 build 29

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Alltena GmbH · Allegraversion=7.5.0build29; version=7.5.0 build 29

Published CVSS scores

7.2Zero Day InitiativeCVSS:3.0/AV:N/AC:L/PR:H/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
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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