CVE-2020-37104

ASTPP 4.0.1 VoIP Billing - Database Backup Download

ASTPP 4.0.1 contains an information disclosure vulnerability that allows unauthenticated attackers to download database backup files by predicting backup filename patterns. Attackers can generate a list of 6-digit PIN combinations and fuzz the backup download URL to exfiltrate sensitive database information from the /database_backup/ directory.

Affected

ASTPP

CVSS v4.0 VULNCHECK

8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 VULNCHECK

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.64% chance of exploitation in the next 30 days, 50th percentile

Published

2026-02-11

Updated

2026-03-05

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/47900

Security advisories

• https://www.vulncheck.com/advisories/astpp-voip-billing-database-backup-download
• iNextrix/ASTPP
• https://www.astppbilling.org

References

• CVE Record
• NVD entry