How severe is CVE-2023-51641?

CVE-2023-51641 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2023-51641 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-51641?

CVE-2023-51641 affects Alltena Allegra. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-51641?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-51641 have an EU (EUVD) identifier?

Yes. CVE-2023-51641 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56353.

When was CVE-2023-51641 published?

CVE-2023-51641 was published on 2024-11-22 and last updated on 2026-06-17.

CVE-2023-51641

CVE-2023-51641 is a medium-severity vulnerability in Alltena Allegra with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-56353
Weakness: CWE-502
Affected product: Alltena Allegra
Published: 2024-11-22
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-51641?: 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 severe is CVE-2023-51641?: CVE-2023-51641 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2023-51641 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-51641?: CVE-2023-51641 affects Alltena Allegra. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-51641?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-51641 have an EU (EUVD) identifier?: Yes. CVE-2023-51641 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56353.
When was CVE-2023-51641 published?: CVE-2023-51641 was published on 2024-11-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:alltena:allegra:*:*:*:*:*:*:*:*

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