🎯 Patch diffing

The items that name it 7

• PHP2Shell: From the attacker’s perspective
  writeupas classification.key entities2026-10-26
• PHP Panic: Two Critical Bugs Put 70% of the Internet at Risk, and Everyone Is Freaking Out
  articleas techniques2026-10-21It is written here as Patch diffing: attackers compare old and new code to find what was fixed.
• Death By A Thousand PaperCuts (PaperCut Pre-Auth RCE Chain and Patch Bypasses WT-2026-0141-0144/CVE-2026-82077/CVE-2026-82078/CVE-2026-81578)
  writeupas techniques2026-10-09

  Used by watchTowr to find patch bypasses and new vulnerabilities in 26.0.4 and 26.0.4-PO build 76508

• You Won’t Hear About These, Even In Myths (Atlassian Jira, Confluence (and more) Pre-Auth Arbitrary File Read CVE-2026-21589)
  writeupas techniques2026-10-06

  Compared atlassian-plugins-webresource-6.0.7.jar with 6.0.8 across Bitbucket, Confluence and Jira to find the flaw. The WAF rule in the advisory, which matches ::, gave the clue.

• Citrix NetScaler CVE-2026-88772 — DTLS preauth memory overflow
  writeupas techniques2026-09-29

  watchTowr compared nsppe binaries between NetScaler 14.1 build 73.30 (vulnerable) and 14.1 build 73.37 (fixed) to identify the added bounds check in the NSB-chain copy loop.

• Is This A Joke? In The Auth Header? (F5 BIG-IP UnAuth Heap-Overflow to RCE CVE-2026-94127)
  writeupas techniques2026-09-23

  Compared BIG-IP 21.1.0 with hotfix 21.1.0.2 in IDA and Diaphora to find the added Authorization header size check.

• 0xor0ne Awesome List
  repoas techniques2026-05-12