CVE-2020-21991

CRITICAL

AVE DOMINAplus <= 1.10.x - Unauthenticated Authentication Bypass via changeparams.php autologin Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-21991. PoCs published by LiquidWorm.

AI-analyzed exploit summary The exploit demonstrates an authentication bypass vulnerability in AVE DOMINAplus by directly calling the 'autologin' GET parameter in the 'changeparams.php' script. Setting 'autologin=1' allows unauthenticated access to the management interface with admin privileges.

Description

AVE DOMINAplus <=1.10.x suffers from an authentication bypass vulnerability due to missing control check when directly calling the autologin GET parameter in changeparams.php script. Setting the autologin value to 1 allows an unauthenticated attacker to permanently disable the authentication security control and access the management interface with admin privileges without providing credentials.

Exploits (1)

exploitdb WORKING POC
by LiquidWorm · textwebappshardware
https://www.exploit-db.com/exploits/47822

The exploit demonstrates an authentication bypass vulnerability in AVE DOMINAplus by directly calling the 'autologin' GET parameter in the 'changeparams.php' script. Setting 'autologin=1' allows unauthenticated access to the management interface with admin privileges.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: AVE DOMINAplus <=1.10.x (Web Server Code 53AB-WBS - 1.10.62 and multiple app versions)
No auth needed
Prerequisites: Network access to the target device · The 'changeparams.php' script must be accessible
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Third Party Advisory x_refsource_misc
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5549.php
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/47822

Scores

CVSS v3 9.8
EPSS 0.0291
EPSS Percentile 85.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-287
Status published
Products (7)
ave/53ab-wbs_firmware 1.10.62
ave/dominaplus 1.10.11 - 1.10.77
ave/ts01_firmware 1.0.65
ave/ts03x-v_firmware 1.10.45a
ave/ts04x-v_firmware 1.10.45a
ave/ts05_firmware 1.10.36
ave/ts05n-v_firmware
Published Apr 28, 2021
Tracked Since Feb 18, 2026