High · published October 28, 2020
CVSS calls it high at 8.0. It is confirmed in active exploitation. It sits in the 97.7th percentile for exploit probability.
🚨 This cross-site scripting (XSS) vulnerability in QNAP devices can let attackers inject malicious code remotely — think of it as a hidden ingredient slipping into a recipe without anyone noticing! ⚡ Imagine a restaurant where a waiter takes orders but forgets to check the kitchen for food allergies. An attacker could sneak in harmful ingredients, causing a disastrous meal for unsuspecting diners. That's how easily malicious scripts can infiltrate a web application without proper validation! If exploited, attackers could execute harmful scripts in the context of an unsuspecting user's browser. This could lead to serious consequences, such as stealing sensitive information, hijacking user sessions, or redirecting users to malicious sites. The potential for chaos is absolutely devastating!
Imagine a restaurant where a waiter takes orders but forgets to check the kitchen for food allergies. An attacker could sneak in harmful ingredients, causing a disastrous meal for unsuspecting diners. That's how easily malicious scripts can infiltrate a web application without proper validation! This XSS vulnerability allows attackers to inject and execute arbitrary JavaScript code on vulnerable QNAP devices, which typically occurs due to insufficient input validation in the web application.
If exploited, attackers could execute harmful scripts in the context of an unsuspecting user's browser. This could lead to serious consequences, such as stealing sensitive information, hijacking user sessions, or redirecting users to malicious sites. The potential for chaos is absolutely devastating! To protect yourself, immediately update your QNAP devices to QTS versions 4.4.2.1270 or later. Make sure to audit existing applications for proper input validation and sanitization to fend off any similar attacks in the future. You've got this! By updating and strengthening your defenses, you’ll be a security hero in no time! 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| qnap/qts | < 4.2.6 | 4.2.6 |
| qnap/qts | ≥ 4.3.1.0013, < 4.3.3.1252 | 4.3.3.1252 |
| qnap/qts | ≥ 4.3.4, < 4.3.4.1282 | 4.3.4.1282 |
| qnap/qts | ≥ 4.3.6, < 4.3.6.1263 | 4.3.6.1263 |
| qnap/qts | ≥ 4.4.0, < 4.4.1.1261 | 4.4.1.1261 |
| qnap/qts | ≥ 4.4.2, < 4.4.2.1270 | 4.4.2.1270 |
| qnap/qts | all versions | — |
| qnap/qts | all versions | — |
| qnap/qts | all versions | — |
| qnap/qts | all versions | — |
| qnap/qts | all versions | — |
| qnap/qts | all versions | — |
| qnap/qts | all versions | — |
| qnap/qts | all versions | — |
| qnap/qts | all versions | — |
| qnap/qts | all versions | — |