CVE & CISA-KEV Catalog

CVE-2023-51641

MEDIUM
6.3
CVSS v3
NVD

Description

Allegra renderFieldMatch Deserialization of Unstrusted Data 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, product implements a registration mechanism that can be used to create a user with a sufficient privilege level. The specific flaw exists within the renderFieldMatch method. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of LOCAL SERVICE. Was ZDI-CAN-22505.

How to fix

Remediation Available
allegraNVD
Affected:< 7.5.1Fixed in:7.5.1CVE-2023-51641derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityLow
AvailabilityLow

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

Exploit Intelligence

1.26%probability of exploitation in 30 days
66thpercentile

Moderate risk: more likely to be exploited than 66% of all known CVEs.

References

Third-Party Advisory1
Release Notes1

Related Vulnerabilities

Other CWE-502 (Deserialization of Untrusted Data) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-0669High7.2100%KEV + RansomFix
CVE-2021-44228Critical10.0100%KEV + RansomFix
CVE-2021-35464Critical9.8100%KEV + RansomFix
CVE-2023-29300Critical9.8100%KEV + Ransom-
CVE-2025-53770Critical9.8100%KEV + RansomFix
CVE-2022-47986Critical9.8100%KEV + Ransom-
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-01-03.