The Administration console for Abyss Web Server 1.0.3 before Patch 2 allows remote attackers to gain privileges and modify server configuration via direct requests to CHL files such as (1) srvstatus.chl, (2) consport.chl, (3) general.chl, (4) srvparam.chl, and (5) advanced.chl.
The Administration console for Abyss Web Server 1.0.3 allows remote attackers to read files without providing login credentials via an HTTP request to a target file that ends in a "+" character.
Directory traversal vulnerability in Aprelium Abyss Web Server (abyssws) before 1.0.0.2 allows remote attackers to read files outside the web root, including the abyss.conf file, via URL-encoded .. (dot dot) sequences in the HTTP request.
Aprelium Abyss Web Server (abyssws) before 1.0.3 stores the administrative console password in plaintext in the abyss.conf file, which allows local users with access to the file to gain privileges.