Impact
An unknown number of users experienced browser crashes when browsing the Learn section of Fluid Attacks' web page. The issue started on UTC-5 23-11-08 09:50 and was proactively discovered 6.2 hours (TTD) later by a staff member who reported through our help desk [1] that the Learn section crashed on the web page. The problem was resolved in 28.8 minutes (TTF), resulting in a total window of exposure of 6.7 hours (WOE) [2].
Cause
The component responsible for displaying the information posts in this section entered a continuous rendering loop due to an element in the wrong place in the code. This continuous rendering hurts web browser performance, leading to resource consumption and browser crashes [3].
Solution
The changes made to the component were reverted, restoring resource consumption to normal and returning the website's browsing experience to its usual state [4].
Conclusion
A linter should have identified the incorrectly positioned element, but it went unnoticed. The team is actively reviewing these tools to address this type of oversight before reaching the production stage. PERFORMANCE_ERROR < FAILED_LINTER