• Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
MUST READ

Operation CargoTalon targets Russia’s aerospace with EAGLET malware,

 | 

Unpatched flaw in EoL LG LNV5110R cameras lets hackers gain Admin access

 | 

Koske, a new AI-Generated Linux malware appears in the threat landscape

 | 

Mitel patches critical MiVoice MX-ONE Auth bypass flaw

 | 

Coyote malware is first-ever malware abusing Windows UI Automation

 | 

SonicWall fixed critical flaw in SMA 100 devices exploited in Overstep malware attacks

 | 

DSPM & AI Are Booming: $17.87B and $4.8T Markets by 2033

 | 

Stealth backdoor found in WordPress mu-Plugins folder

 | 

U.S. CISA adds CrushFTP, Google Chromium, and SysAid flaws to its Known Exploited Vulnerabilities catalog

 | 

U.S. CISA urges FCEB agencies to fix two Microsoft SharePoint flaws immediately and added them to its Known Exploited Vulnerabilities catalog

 | 

Sophos fixed two critical Sophos Firewall vulnerabilities

 | 

French Authorities confirm XSS.is admin arrested in Ukraine

 | 

Microsoft linked attacks on SharePoint flaws to China-nexus actors

 | 

Cisco confirms active exploitation of ISE and ISE-PIC flaws

 | 

SharePoint under fire: new ToolShell attacks target enterprises

 | 

CrushFTP zero-day actively exploited at least since July 18

 | 

Hardcoded credentials found in HPE Aruba Instant On Wi-Fi devices

 | 

MuddyWater deploys new DCHSpy variants amid Iran-Israel conflict

 | 

U.S. CISA urges to immediately patch Microsoft SharePoint flaw adding it to its Known Exploited Vulnerabilities catalog

 | 

Microsoft issues emergency patches for SharePoint zero-days exploited in "ToolShell" attacks

 | 
  • Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
  • Home
  • Breaking News
  • Hacking
  • PayPal addresses reflected XSS bug in user wallet currency converter

PayPal addresses reflected XSS bug in user wallet currency converter

Pierluigi Paganini February 14, 2021

PayPal has addressed a reflected cross-site scripting (XSS) vulnerability that affected the currency converter feature of user wallets. 

PayPal has fixed a reflected cross-site scripting (XSS) vulnerability that was discovered in the currency converter feature of user wallets on February 19, 2020, close one year ago.

The ‘reflected XSS and CSP bypass’ vulnerability was reported by the bug bounty hunter “Cr33pb0y” through the HackerOne platform.

“An endpoint used for currency conversion was found to suffer from a reflected XSS vulnerability, where user input was not being properly sanitized in a parameter in the URL. This could lead to a malicious user injecting malicious JavaScript, HTML, or any other type of code that the browser may execute. The malicious script will execute in the browser page DOM of another user typically without their knowledge or consent.” reads the summary published by PayPal.

PayPal has implemented additional validation checks and sanitizer controls for user input in the currency exchange feature before being returned in the response.

According to PayPal, the flaw resided in the currency conversion endpoint and was caused by a failure to properly sanitize the input in a parameter in the URL. 

An attacker could have exploited the flaw to inject malicious code (JavaScript, HTML, or any other language) that will be executed within the browser. 

This means that the malicious script will execute in the browser page Document Object Model (DOM) of another user typically without their knowledge or consent.

In a real attack scenario, threat actors could trigger the flaw by tricking the victims into clicking on a specially crafted link.

Malicious payloads could be executed to carry out multiple malicious activities, such as stealing cookies and session tokens. 

Cr33pb0y received a $2,900 reward as part of the bug bounty program. 

If you want to receive the weekly Security Affairs Newsletter for free subscribe here.

[adrotate banner=”9″][adrotate banner=”12″]

Pierluigi Paganini

(SecurityAffairs – hacking, PayPal)

[adrotate banner=”5″]

[adrotate banner=”13″]


facebook linkedin twitter

Hacking hacking news information security news IT Information Security malware Pierluigi Paganini Security Affairs Security News XSS

you might also like

Pierluigi Paganini July 25, 2025
Operation CargoTalon targets Russia’s aerospace with EAGLET malware,
Read more
Pierluigi Paganini July 25, 2025
Unpatched flaw in EoL LG LNV5110R cameras lets hackers gain Admin access
Read more

leave a comment

newsletter

Subscribe to my email list and stay
up-to-date!

    recent articles

    Operation CargoTalon targets Russia’s aerospace with EAGLET malware,

    Intelligence / July 25, 2025

    Unpatched flaw in EoL LG LNV5110R cameras lets hackers gain Admin access

    Security / July 25, 2025

    Koske, a new AI-Generated Linux malware appears in the threat landscape

    Malware / July 25, 2025

    Mitel patches critical MiVoice MX-ONE Auth bypass flaw

    Security / July 25, 2025

    Coyote malware is first-ever malware abusing Windows UI Automation

    Malware / July 24, 2025

    To contact me write an email to:

    Pierluigi Paganini :
    pierluigi.paganini@securityaffairs.co

    LEARN MORE

    QUICK LINKS

    • Home
    • Cyber Crime
    • Cyber warfare
    • APT
    • Data Breach
    • Deep Web
    • Digital ID
    • Hacking
    • Hacktivism
    • Intelligence
    • Internet of Things
    • Laws and regulations
    • Malware
    • Mobile
    • Reports
    • Security
    • Social Networks
    • Terrorism
    • ICS-SCADA
    • POLICIES
    • Contact me

    Copyright@securityaffairs 2024

    We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
    Cookie SettingsAccept All
    Manage consent

    Privacy Overview

    This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities...
    Necessary
    Always Enabled
    Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
    Non-necessary
    Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
    SAVE & ACCEPT