Vuln Finder

Name: Vuln Finder
Rating: 5 (1 reviews)
Author: FiftyFiveAA

Finds common low severity vulnerabilities in websites. This is done by analyzing cookies, server response headers, and local storage.

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This Add-on is intended for penetration testers and developers who want an easy way to identify vulnerabilities in their website. Vuln Finder reports vulnerabilities found in cookies, server response headers, and local storage.

Vuln Finder parses the cookies of the current tab and reports any cookies without the secure flag or http only flag. It sends a GET request to the URL in the current tab and then parses the server response headers. Missing security headers and headers with server version information are reported. Lastly, if the site uses local storage then the contents of local storage are also reported.

Add-on

By:

FiftyFiveAA

Daily users:

Rating:

5.00

(1)

Version:

1.1 Last updated: 2022-01-27

Version code:

5356309

Creation date:

2021-10-15

Risk:

Permissions:

activeTab
storage
cookies
webRequest
<all_urls>

Size:

61.72KB

Email:

fi*****@gmail.com

Full description:

Source:

Firefox Browser Add-ons

Data ingested on:

2025-07-13

Ranking

# 18,136 ▲ 23

Other rankings

#47 in finder keyword 47 ▼ 1 #84 in response keyword 13 ▼ 1 #191 in analyzer keyword 20 ▼ 5 #211 in wa sender keyword 28 ▲ 1 #238 in analyze keyword 8 ▼ 3

User reviews

by 远离*****, 2025-04-21

by 敬念*****, 2025-03-15

s-tier add-on

by rt*****, 2021-10-17

View all user reviews ›

Extension safety

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Vuln Finder requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Browser Add-ons, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Vuln Finder has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******

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