Medium · published October 28, 2020
CVSS calls it medium at 6.1. It is confirmed in active exploitation. It sits in the 98.1th percentile for exploit probability.
⚠️ This sneaky little cross-site scripting vulnerability lets attackers inject malicious code into your QNAP device! Think of it like a restaurant where a mischievous diner can alter the chef's special without anyone noticing — they can rearrange ingredients to create chaos. This vulnerability allows attackers to sprinkle their own code into unsuspecting users' sessions, potentially leading to data theft or system compromise. If exploited, a remote attacker could execute arbitrary scripts in the context of an authenticated user's session. This means they could manipulate your files, steal sensitive information, or even take control of your device — absolutely devastating!
Think of it like a restaurant where a mischievous diner can alter the chef's special without anyone noticing — they can rearrange ingredients to create chaos. This vulnerability allows attackers to sprinkle their own code into unsuspecting users' sessions, potentially leading to data theft or system compromise. CVE-2018-19953 is a cross-site scripting (XSS) vulnerability that arises from improper validation of user input. This flaw allows attackers to inject malicious scripts that run in the browser of unsuspecting users, leveraging their session to carry out harmful actions.
If exploited, a remote attacker could execute arbitrary scripts in the context of an authenticated user's session. This means they could manipulate your files, steal sensitive information, or even take control of your device — absolutely devastating! To protect yourself, make sure to update your QNAP device to one of the secure versions: QTS 4.4.2.1231 or later, or any of the specified builds. Regularly check for updates and implement web application firewalls to mitigate risks further. You've got this! By taking these steps, you're on your way to becoming a security hero! 🦸♂️
| Product | Versions | Fixed in |
|---|---|---|
| qnap/qts | < 4.2.6 | 4.2.6 |
| qnap/qts | ≥ 4.3.1.0013, < 4.3.3.1161 | 4.3.3.1161 |
| qnap/qts | ≥ 4.3.4, < 4.3.4.1190 | 4.3.4.1190 |
| qnap/qts | ≥ 4.3.6, < 4.3.6.1218 | 4.3.6.1218 |
| qnap/qts | ≥ 4.4.0, < 4.4.1.1201 | 4.4.1.1201 |
| qnap/qts | ≥ 4.4.2, < 4.4.2.1231 | 4.4.2.1231 |
| qnap/qts | all versions | — |
| qnap/qts | all versions | — |
| qnap/qts | all versions | — |
| qnap/qts | all versions | — |
| qnap/qts | all versions | — |
| qnap/qts | all versions | — |