Amazon Threat Intelligence's MadPot honeypots logged attempts against the then-secret PHP2Shell flaws on Saturday October 17 from an anonymized IP, with varied payloads suggesting multiple actors. Cloudflare also saw unsuccessful attempts before disclosure. Amazon says it is unclear how the actor obtained exploit details during the embargo.
What to do: Patches shipped October 21; question of how details leaked remains open.
· 19 days ago · millions of exposed PHP hosts · BleepingComputer
Why this score
Every PHP web server at risk (impact 4), pre-disclosure exploitation attempts (exploitability 2), government and critical sites touched (criticality 1).