TI-2023-28293 Aliases CVE-2023-51642 GHSA-3pq3-cxgx-g86g

Deserialization of untrusted data in Allegra

LOW 39CWE-502Published 2024-11-22 · Updated 2024-11-25

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: Low · Low · Low
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-502.

Summary

Allegra loadFieldMatch Deserialization of Untrusted 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 loadFieldMatch 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-22506.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01295 70th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Allegra	Allegra	7.5.0 build 29	—	No fix listed	CNA

Allegra VendorAllegra Affected 7.5.0 build 29 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:alltena:allegra::::::::	before 7.5.1	Vulnerable	Allegra

cpe:2.3:a:alltena:allegra:*:*:*:*:*:*:*:* Versions before 7.5.1 Vulnerable ·Allegra

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2024-11-22
Allegra — vendor-provided URL
14 records Highest priority Priority MEDIUM 5 MEDIUM, 9 LOW
Other records, highest priority first
- TI-2023-28290 Path traversal in AllegraPriority MEDIUM 54
- TI-2023-28289 Hard-coded credentials in AllegraPriority MEDIUM 52
- TI-2023-28717 Path traversal in AllegraPriority MEDIUM 44
Show all 14 records → Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2023-51642
2026-10-03 Alias added: GHSA-3pq3-cxgx-g86g

References

Advisory 2

TI-2025-05624 Weak password recovery in Allegra CVSS 3.0CRITICAL 9.8
TI-2023-28290 Path traversal in Allegra CVSS 3.1CRITICAL 9.8
TI-2023-28289 Hard-coded credentials in Allegra CVSS 3.1CRITICAL 9.8
TI-2025-03063 Path traversal in Allegra CVSS 3.1HIGH 8.8
TI-2023-28717 Path traversal in Allegra CVSS 3.1HIGH 7.3
TI-2023-28295 Improper access control in Allegra CVSS 3.1HIGH 7.3

See all 20 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences