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CVE-2023-51646

MEDIUMCVSS 4.7/10EPSS 1.79%

Last modified

CVE-2023-51646 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. Allegra uploadSimpleFile Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Allegra. EPSS estimates a 1.79% chance of exploitation in the next 30 days.

Description

Allegra uploadSimpleFile 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 uploadSimpleFile 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-22527.

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
1.79%

75.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
AlltenaAllegra< 7.5.1

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2023-51646?
Allegra uploadSimpleFile 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 uploadSimpleFile 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-22527.
How severe is CVE-2023-51646?
CVE-2023-51646 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 1.79% probability of exploitation in the next 30 days.
How do I fix CVE-2023-51646?
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-2023-51646?

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Source: NVD / NIST