The backdooring of SquirrelMail. A SquirrelMail developer’s account was compromised and used to insert a backdoor: the other developers initially missed the hole because it used $_SERVER[’HTTP_BASE_PATH’], which can be set with a Base-Path: HTTP header.
Recent articles
- The Summer of Johann: prompt injections as far as the eye can see - 15th August 2025
- Open weight LLMs exhibit inconsistent performance across providers - 15th August 2025
- LLM 0.27, the annotated release notes: GPT-5 and improved tool calling - 11th August 2025