DOM-based cross-site scripting in LedgerSMB - CVE-2021-3693
Published: August 25, 2021
Vulnerability identifier: #VU56097
CSH Severity: Low
CVSS v4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2021-3693
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. A remote user can execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Affected software
LedgerSMB
ledgersmb (Debian package)
ledgersmb (Ubuntu package)
Ubuntu
ledgersmb (Debian package)
ledgersmb (Ubuntu package)
Ubuntu
How to mitigate CVE-2021-3693
Install updates from vendor's website.
LedgerSMB - addressed in versions 1.7.33, 1.8.18
ledgersmb (Debian package) - addressed in versions 1.6.9+ds-1+deb10u2, 1.6.9+ds-2+deb11u2
ledgersmb (Ubuntu package) - addressed in versions 1.3.46-1ubuntu0.1~esm1, 1.4.42+ds-1ubuntu0.1~esm1, 1.6.9+ds-1ubuntu0.1, 1.6.9+ds-1ubuntu0.1+esm1, 1.6.9+ds-2ubuntu0.1, 1.6.33+ds-1ubuntu0.1, 1.6.33+ds-2.1ubuntu0.1, 1.6.33+ds-2.2ubuntu0.25.04.1
ledgersmb (Debian package) - addressed in versions 1.6.9+ds-1+deb10u2, 1.6.9+ds-2+deb11u2
ledgersmb (Ubuntu package) - addressed in versions 1.3.46-1ubuntu0.1~esm1, 1.4.42+ds-1ubuntu0.1~esm1, 1.6.9+ds-1ubuntu0.1, 1.6.9+ds-1ubuntu0.1+esm1, 1.6.9+ds-2ubuntu0.1, 1.6.33+ds-1ubuntu0.1, 1.6.33+ds-2.1ubuntu0.1, 1.6.33+ds-2.2ubuntu0.25.04.1