SB2019052101 - Open redirect in Newsletter Manager plugin for WordPress
Published: May 21, 2019
Security Bulletin ID
SB2019052101
CSH Severity
Low
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Open redirect (CVE-ID: N/A)
CWE-ID: CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
CVSSv4: 0 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to redirect victims to arbitrary URL.
The vulnerability exists due to improper sanitization of user-supplied data passed via "appurl" HTTP GET parameter within the "/newsletter-manager/confirmation.php" script. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.
Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.
Example:
http://host[]?wp_nlm=confirmation&appurl=<BASE64_ENCODED_LINK>Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.