neko e58bb493af PHP session upload progress RCE exploits (CVE-2026-109618, CVE-2026-109619) ...

Full RCE exploit chain for two critical PHP vulnerabilities in the multipart
parser and session upload progress handler, plus three bypass exploits that
defeat the official security patch (PHP 8.4.27) and all recommended mitigations.

Core exploits:
- CVE-2026-109618: OOM in multipart parser → session persistence → LFI → RCE
- CVE-2026-109619: Session poisoning via upload progress (direct + race) → RCE
- WordPress-targeted wrapper with LFI auto-detection

Patch bypass exploits (confirmed RCE on PHP 8.4.27):
- Race condition: TOCTOU inherent to upload progress feature design
- RLIMIT_AS: mmap() failure bypasses the patched OOM handler
- /proc/PID/fd: temp file inclusion bypasses ALL mitigations

2026-10-21 11:29:40 -05:00

..

FINDINGS.md

PHP session upload progress RCE exploits (CVE-2026-109618, CVE-2026-109619)

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procfd_bypass_hardened.py

PHP session upload progress RCE exploits (CVE-2026-109618, CVE-2026-109619)

2026-10-21 11:29:40 -05:00

race_bypass_patched.py

PHP session upload progress RCE exploits (CVE-2026-109618, CVE-2026-109619)

2026-10-21 11:29:40 -05:00

rlimit_bypass_patched.py

PHP session upload progress RCE exploits (CVE-2026-109618, CVE-2026-109619)

2026-10-21 11:29:40 -05:00

waf_bypass_test.py

PHP session upload progress RCE exploits (CVE-2026-109618, CVE-2026-109619)

2026-10-21 11:29:40 -05:00