Based on the screenshot, here are the key points about the vulnerability: Vulnerability in ExpressionEngine: - Title: "Уразливість в ExpressionEngine" - Dates mentioned: - 15.10.2007 - 21.11.2007 - A Cross-Site Scripting vulnerability was discovered by a hacker in ExpressionEngine. This was mitigated by implementing a redirector. - Details of the vulnerability were initially kept internal but eventually disclosed to developers. HTTP Response Splitting Vulnerability: - Located in the script parameter URL. This can be specifically used for Cross-Site Scripting attacks. - Example Exploit: Timeline of Resolution: - The vulnerability existed in ExpressionEngine versions 1.2.1 and earlier. - In version 1.3.1, the vulnerability was fixed. However, documentation announcing this was delayed due to concerns about redirections in EE’s architecture (objective). - A final version of the fix was said to come online after a 3-hour delay. Engagement with Developers and Security Community: - The team had a prolonged timeframe for releasing detailed exploit information, waiting until after rotabanner ads were gone ( Rotabanner ad platforms mitigate related exploit details).