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Cross-site Scripting occurrences in Casap Automated Enrollment System
Multiple Cross Site Scripting (XSS) vulnerabilities exist in SourceCodester CASAP Automated Enrollment System 1.0 via the (1) user_username and (2) category parameters in save_class.php, the (3) firstname, (4) class, and (5) status parameters in student_table.php, the (6) category and (7) class_name parameters in add_class1.php, the (8) fname, (9) mname,(10) lname, (11) address, (12) class, (13) gfname, (14) gmname, (15) glname, (16) rship, (17) status, (18) transport, and (19) route parameters in add_student.php, the (20) fname, (21) mname, (22) lname, (23) address, (24) class, (25) fgname, (26) gmname, (27) glname, (28) rship, (29) status, (30) transport, and (31) route parameters in save_stud.php,the (32) status, (33) fname, and (34) lname parameters in add_user.php, the (35) username, (36) firstname, and (37) status parameters in users.php, the (38) fname, (39) lname, and (40) status parameters in save_user.php, and the (41) activity_log, (42) aprjun, (43) class, (44) janmar, (45) Julsep,(46) octdec, (47) Students and (48) users parameters in table_name. (2021-11-08, CVE-2021-40261)
Cross-site scripting (XSS) vulnerability in SourceCodester CASAP Automated Enrollment System v 1.0 allows remote attackers to inject arbitrary web script or HTML via the class_name parameter to update_class.php. (2021-07-22, CVE-2021-27332)
Cross-site scripting (XSS) vulnerability in SourceCodester CASAP Automated Enrollment System v 1.0 allows remote attackers to inject arbitrary web script or HTML via the student information parameters to edit_stud.php. (2021-07-22, CVE-2021-26227)
Cross-site scripting (XSS) vulnerability in SourceCodester CASAP Automated Enrollment System v 1.0 allows remote attackers to inject arbitrary web script or HTML via the user information to save_user.php. (2021-07-22, CVE-2021-26230)
CASAP Automated Enrollment System version 1.0 contains a cross-site scripting (XSS) vulnerability through the Students > Edit > ROUTE parameter. (2021-04-15, CVE-2021-27129)
CASAP Automated Enrollment System 1.0 is affected by cross-site scripting (XSS) in users.php. An attacker can steal a cookie to perform user redirection to a malicious website. (2021-02-09, CVE-2021-3294)
Why Cross-site Scripting can be dangerous
Cross site scripting is an attack where a web page executes code that is injected by an adversary. It usually appears, when users input is presented. This attack can be used to impersonate a user, take over control of the session, or even steal API keys.
The attack can be executed e.g. when you application injects the request parameter directly into the HTML code of the page returned to the user:
https://server.com/confirmation?message=Transaction+Complete
what results in:
<span>Confirmation: Transaction Complete</span>
In that case the message can be modified to become a valid Javascript code, e.g.:
https://server.com/confirmation?message=<script>dangerous javascript code here</script>
and it will be executed locally by the user's browser with full access to the user's personal application/browser data:
<span>Confirmation: <script>dangerous javascript code here</script></span>