CVE-2023-51643

Name: CVE-2023-51643
Creator: NVD / NIST
Published: 2024-11-22T20:15:06.87+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.7/10EPSS 2.09%

Last modified Jun 17, 2026

CVE-2023-51643 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. Allegra uploadFile Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Allegra. EPSS estimates a 2.09% chance of exploitation in the next 30 days.

Description

Allegra uploadFile Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Allegra. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the uploadFile method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of LOCAL SERVICE. Was ZDI-CAN-22510.

Metrics

CVSS 3.1

4.7/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

EPSS Probability

2.09%

79.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Alltena	Allegra	< 7.5.1

References

https://www.trackplus.com/en/service/release-notes-reader/7-5-1-release-notes-2.htmlRelease Notes
https://www.zerodayinitiative.com/advisories/ZDI-24-103/Third Party Advisory, VDB Entry

Timeline

Published: Nov 22, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-51643?

How severe is CVE-2023-51643?

CVE-2023-51643 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 2.09% probability of exploitation in the next 30 days.

How do I fix CVE-2023-51643?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-51643?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST