بِسْمِ اللَّـهِ الرَّحْمَـٰنِ الرَّحِيمِ

Content

1. Lists.

2. Conditional statements:

   • if

   • elif

   • else

3. Loops:

   • for

   • while

4. Practical Program.

1. Python Lists

• Lists in python are used to store multiple items in a single variable For Example

vulnerabilities = ["SQLi", "XSS", "CSRF"]
print(vulnerabilities) # ['SQLi', 'XSS', 'CSRF']

• List Length:

  • To print list Length use the len() function:

    vulnerabilities = ["SQLi", "XSS", "CSRF"]
    print(len(vulnerabilities)) # 3

• Lists can contains various data types at the same list for example:

vulnerabilities = ["SQLi", "XSS", "CSRF"]
severity = [9.8 , 7.3 , 6.2]
found = [True , False , False]
# Mixed Data Type list Example:
vuln_sev_valid = ["SQLi", 9.8 , True]

2. Conditional statements

1. if Statement:

• The if statement executes a block of code if a specified condition is True.

#Age Checker program
age = 20
if age >= 18:
    print("You are an adult.")

1. elif Statement:

• The elif (short for else if) statement checks another condition if the previous if condition is False.

#Age Checker program
age = 15
if age >= 18:
    print("You are an adult.")
elif age >= 13:
    print("You are a teenager.")

1. else Statement:

• The else statement executes a block of code if all previous conditions are False.

#Full age Checker program
age = 10
if age >= 18:
    print("You are an adult.")
elif age >= 13:
    print("You are a teenager.")
else:
    print("You are a child.")

3. Loops

1. for Loop:

• The for loop iterates over a sequence (like a list, tuple, or string) and executes a block of code for each item in the sequence.

bugs = ["SQLi","XSS","CSRF"]
for bug in bugs:
    print(bug + " Vulnerability")

• You can also use the range() function to iterate over a sequence of numbers.

for i in range(5):
    print(i)

1. while loop:

• The while loop executes a block of code as long as a specified condition is True.

count = 0
while count < 5:
    print(count)
    count += 1

4. Practical Program

• Let’s Create a Practical Program that contains all section:

# List of vulnerabilities with their severity levels
vulnerabilities = ["SQLi", "XSS", "CSRF"]
severity = [9.8, 7.3, 6.2]
found = [True, False, False]

# Print all vulnerabilities
print("Vulnerabilities List:")
for vuln in vulnerabilities:
    print(vuln)

# Print the length of vulnerabilities
print("\\nNumber of vulnerabilities found:", len(vulnerabilities))

# Check the severity level of vulnerabilities using for loop
print("\\nChecking vulnerabilities and their severity levels:")
for i in range(len(vulnerabilities)):
    print(f"\\nChecking vulnerability: {vulnerabilities[i]}")

    # Check the severity
    if severity[i] > 9.0:
        print("Severity Level: Critical")
    elif severity[i] > 7.0:
        print("Severity Level: High")
    else:
        print("Severity Level: Medium")

# Using a while loop to print the vulnerabilities if that found
print("\\nList of found vulnerabilities:")
index = 0
while index < len(vulnerabilities):
    if found[index]:
        print(f"Vulnerability found: {vulnerabilities[index]} with severity {severity[index]}")
    index += 1

• Try to execute the program and explain the steps to you and try write it, The output is:

Vulnerabilities List:
SQLi
XSS
CSRF

Number of vulnerabilities found: 3

Checking vulnerabilities and their severity levels:

Checking vulnerability: SQLi
Severity Level: Critical

Checking vulnerability: XSS
Severity Level: High

Checking vulnerability: CSRF
Severity Level: Medium

List of found vulnerabilities:
Vulnerability found: SQLi with severity 9.8

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