CVE-2020-19885 : What You Need to Know
Learn about CVE-2020-19885, a stored XSS vulnerability in DBHcms v1.2.0 that allows remote authenticated attackers to hijack user accounts. Find mitigation steps and long-term security practices here.
DBHcms v1.2.0 has a stored XSS vulnerability due to the absence of the htmlspecialchars function for the '$_POST['pageparam_insert_name']' variable in dbhcms\mod\mod.page.edit.php line 227. An authenticated remote attacker with admin user privileges can exploit this flaw to hijack other users.
Understanding CVE-2020-19885
This CVE describes a stored XSS vulnerability in DBHcms v1.2.0 that can be leveraged by a remote authenticated attacker to perform user hijacking.
What is CVE-2020-19885?
The vulnerability in DBHcms v1.2.0 allows an attacker to execute malicious scripts in a victim's browser, potentially leading to unauthorized actions.
The Impact of CVE-2020-19885
The presence of this vulnerability enables an attacker to compromise user accounts and perform unauthorized actions on behalf of legitimate users.
Technical Details of CVE-2020-19885
This section provides technical insights into the vulnerability.
Vulnerability Description
The absence of proper input sanitization in the '$_POST['pageparam_insert_name']' variable allows for the injection of malicious scripts.
Affected Systems and Versions
- Affected System: DBHcms v1.2.0
- Affected Version: Not applicable
Exploitation Mechanism
An authenticated remote attacker with admin user privileges can exploit this vulnerability by injecting malicious scripts into the '$_POST['pageparam_insert_name']' variable.
Mitigation and Prevention
Protecting systems from this vulnerability requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply a security patch or update provided by the vendor.
- Implement input validation and output encoding to prevent XSS attacks.
Long-Term Security Practices
- Regularly update and patch all software components to address security vulnerabilities.
- Conduct security training for developers to enhance awareness of secure coding practices.
Patching and Updates
Ensure that the DBHcms software is updated to a secure version that includes the necessary fixes for the XSS vulnerability.