php2shell-check SKILL.md skillA
php2shell-check from anton-abyzov/vskill is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add anton-abyzov/vskill/php2shell-check@v0.1.0Pins v0.1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- anton-abyzov/vskill
- Path
plugins/security/skills/php2shell-check/SKILL.md- Versions recorded
- 1
- Latest version
- v0.1.0, committed Oct 21, 2026
- Size
- 7,885 bytes
- Repository stars
- 48
- License
- MIT
Read-only exposure check and fix plan for php2shell, the October 2026 PHP emergency patch (CVE-2026-109618, CVE-2026-109619, unauthenticated RCE in every web SAPI). Runs a portable POSIX script that finds installed PHP binaries and versions, judges each against the fixed releases (8.2.35, 8.3.36, 8.4.27, 8.5.12, 8.6.0RC4), detects distro packages that may carry backports, scans the project (Dockerfile/compose php images, .php-version, .tool-versions, composer.json, setup-php) and checks the…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# php2shell-check php2shell is two critical bugs in PHP's request handling, disclosed and fixed on 2026-10-21 (CVSS v4.0 9.2 each): - **CVE-2026-109618** ([GHSA-w8hw-w9fx-j79w](https://github.com/php/php-src/security/advisories/GHSA-w8hw-w9fx-j79w)): memory corruption when PHP runs out of memory while setting up request data; multipart parsing can trigger it. Unauthenticated RCE, shown on mod_php with the default config; FPM, FrankenPHP and LSAPI are likely exposed. - **CVE-2026-109619** ([GHSA-6wmf-4rv5-p3rp](https://github.com/php/php-src/security/advisories/GHSA-6wmf-4rv5-p3rp)): use-after-free of request state across requests on the same worker. Unauthenticated RCE or memory disclosure; shown on mod_php (8.5 `fatal_error_backtraces`) and PHP-FPM via session upload progress, which is on by default. No app code needed. Every web SAPI is affected (FPM, mod_php, php-cgi, FrankenPHP, LiteSpeed). CLI-only use is not the attack surface. Exploit attempts were seen on 2026-10-21 (Cloudflare, watchTowr). Not in CISA KEV as of 2026-10-21. …
Read the whole file at its exact version.
How to install
mdr add anton-abyzov/vskill/php2shell-check@sha256:b0542370838872ddThe line at the top of this page pins the label v0.1.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ssvpt2ul4wn4jrzl)
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Versions
The registry has recorded 1 version of this file, committed on Oct 21, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7885 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
anton-abyzov/vskill · 48 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ssvpt2ul4wn4jrzl GET https://markdownregistry.com/api/v1/resolve?ref=anton-abyzov/vskill/php2shell-check GET https://markdownregistry.com/api/v1/blob/b0542370838872ddc03db898e5ae2a4fa037d90b77a80370b9a06d840cfaa32c
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.