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CVE-2023-27641: exploits/listserv_report_xss.MD at master · hosakauk/exploits
The REPORT (after z but before a) parameter in wa.exe in L-Soft LISTSERV 16.5 before 17 allows an attacker to conduct XSS attacks via a crafted URL.
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L-Soft LISTSERV 16.5 Reflected Cross-Site Scripting
The REPORT parameter used by the wa.exe component of LISTSERV 16.5 is vulnerable to reflected Cross-Site Scripting due to improper sanitization of user input. By closing the HTML tag after the z parameter (as shown below), JavaScript can be injected into the URL before the a parameter. note versions prior to 16.5 may also be affected but have not been tested.