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.
CVSS v4.0 Metrics
Exploitability
Attack VectorNetwork
ComplexityLow
RequirementsPresent
PrivilegesLow
User InteractionNone
Threat
Exploit MaturityUnreported
Vulnerable System
ConfidentialityHigh
IntegrityNone
AvailabilityHigh
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Change Log
| Date | Source | Changes | Score |
|---|
| 2026-07-21 | cve.org | initial, patch: Unavailable | 2.4 |
Affected Software
| Vendor | Product | Version |
|---|
| Avaya | Callback Assist | ≥ 4.0, < 4.7.1.1 |
| avaya | callback_assist | ≥ 4.0.0, < 4.7.1.1 |
| avaya | callback_assist | 4.7.1.1 |
Published: 2021-04-23
