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ID:5603 - Exploit for Cross-site scripting in b2evolution - CVE-2020-22839
ID:5603 - Exploit for Cross-site scripting in b2evolution - CVE-2020-22839
Published: June 17, 2021
Vulnerability identifier: #VU50688
Vulnerability risk: Low
CVE-ID: CVE-2020-22839
CWE-ID: CWE-79
Exploitation vector: Remote access
Vulnerable software:
b2evolution
b2evolution
Link to public exploit:
Vulnerability description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in the "tab3" parameter in "evoadm.php" script. A remote attacker can trick the victim to follow a specially crafted link and 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.
Remediation
Install update from vendor's website.