Directory traversal vulnerability in am.pl in (1) SQL-Ledger 2.6.27 and earlier, and (2) LedgerSMB before 1.2.0, allows remote attackers to run arbitrary executables and bypass authentication via a .. (dot dot) sequence and trailing NULL (%00) in the login parameter. NOTE: this issue was reportedly addressed in SQL-Ledger 2.6.27, however third-party researchers claim that the file is still executed even though an error is generated.

Unspecified vulnerability in admin.pl in SQL-Ledger before 2.6.26 and LedgerSMB before 1.1.9 allows remote attackers to bypass authentication via unknown vectors that prevents a password check from occurring.

Unspecified vulnerability in LedgerSMB before 1.1.5 and SQL-Ledger before 2.6.25 allows remote attackers to overwrite files and possibly bypass authentication, and remote authenticated users to execute unauthorized code, by calling a custom error function that returns from execution.

Directory traversal vulnerability in SQL-Ledger, and LedgerSMB before 1.1.5, allows remote attackers to read and overwrite arbitrary files, and execute arbitrary code, via . (dot) characters adjacent to (1) users and (2) users/members strings, which are removed by blacklisting functions that filter these strings and collapse into .. (dot dot) sequences.

The redirect function in Form.pm for (1) LedgerSMB before 1.1.5 and (2) SQL-Ledger allows remote authenticated users to execute arbitrary code via redirects, related to callbacks, a different issue than CVE-2006-5872.

SQL-Ledger 2.4.4 through 2.6.17 authenticates users by verifying that the value of the sql-ledger-[username] cookie matches the value of the sessionid parameter, which allows remote attackers to gain access as any logged-in user by setting the cookie and the parameter to the same value.