FirstBlood-#209 — Rxss leads to ato accountakeover
This report has been reviewed and accepted as a valid vulnerability on FirstBlood!
On 2021-05-12, prob_hakz reported:
I have written a detailed report here of the impact of this short xss payload which is script inclusion
In the above payload it is just only alert
But we can do what ever we want like phishing, key stroke logging, account takeover by cookie stealing becuase there is no http only tag for cookie and can also able to steal appointments and entire source code with small snippets with ajax snippets fetch('//drpanel/index.php') and stealing the response and also for fetch('/drpanel/cancelled.php') and steling thre response with the .then
response =>response.text().then`data => console.log(data) why this fetch request work means becuase it is giviing ajax query to its own endpoints and so it work smoothly
so it would be any easy attack
The site accepting any script there is no cors here which made this attack possible
Becuase of script inclusion we can entirely attack the site as a bit attacker . tq for the hackevent sean
This report has been publicly disclosed for everyone to view
FirstBlood ID: 2
Vulnerability Type: Reflective XSS
The parameter "goto" is vulnerable to XSS on login.php. The web application makes use of a WAF but this can be bypassed as it's only looking for certain HTML tags and event handlers. It is also vulnerable to open redirect but XSS is the intended bug.
Respect Earnt: 1500000
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