CVE-2020-7036: XXE in Avaya Callback Assist Administration

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-04-23 · updated 2026-06-17
Weakness: CWE-611

Description

An XML External Entities (XXE)vulnerability in Callback Assist could allow an authenticated, remote attacker to gain read access to information that is stored on an affected system. The affected versions of Callback Assist includes all 4.0.x versions before 4.7.1.1 Patch 7.

Affected products

Avaya Callback Assist: from 4.0.0 before 4.7.1.1; 4.7.1.1, 4.7.1.1-patch1, 4.7.1.1-patch2, 4.7.1.1-patch3, 4.7.1.1-patch4, 4.7.1.1-patch5 (+1) — fixed in 4.7.1.1

How to fix

Upgrade to a fixed version: Avaya Callback Assist 4.7.1.1. Check the vendor advisory for mitigations.

References

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