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Fact · leak · reported

The leak started with an anonymous Hacker News post citing a reliable source, which came down after screenshots spread; a screenshot of the 'PHP2Shell tool' credited to Calif.io and a short exploitation video also went up and came down

Who says it: Alexandre Daubois (PHP security team, personal blog) · Sources: Daubois

Contradicts the Foundation's 'no technical details leaked' and The Hacker News's 'a proof-of-concept exploit leaked'. No copy of the post, screenshot or video is in the vault.

Fact-check

A2 Reported disputed · Event · verdict: holds in part

The Hacker News post, its removal and the screenshots spreading are carried by Daubois and corroborated by Huntress, CybelAngel and Equixly (A4). 'Anonymous', 'citing a reliable source' and the screenshot 'credited to Calif.IO' are Daubois alone. Daubois says the screenshot 'leaked alongside the advisory', not that it came down; only the video 'went up and came down'.

Capture checkedResultWhat it sayssha256 of the text read
daubois-blog-php2shell-rumorscarriesAn anonymous Hacker News post citing a reliable source went up on October 20 and came down, but screenshots of it had already reached5ef17f9886aa93f7
huntress-php2shell-rapid-responsepartialThe post was taken down, but not before screenshots made their way around social media.a83d744768109a61
cybelangel-php2shellpartialThe incident started with a leak. On the morning of 20 October, a since-removed Hacker News post claimed the two flaws4ffc5347bfe22fb4
equixly-php2shell-what-we-knowpartialSansec cites a leaked screenshot of an exploit tool named PHP2Shell, whose banner claims the tool works against PHP 5.4.0 and later.34bf72d02f14deb9
thehackernews-php2shell-4dayspartialdetails about the CVE identifiers and a proof-of-concept (PoC) exploit leaked ahead of timec1cb63141287484c

Open tickets: Contradiction-9, Finding-79.

Graded in Run-1, resting on captures up to 2026-10-22 11:28 UTC. The scale is on the fact-check page.

This fact over time

  1. 2026-10-21Daubois publishes What the PHP2Shell rumors got wrong, from inside the PHP security team
  2. 2026-10-22 08:12 UTCSaved into the evidence vault: Daubois
  3. 2026-10-22Enters this site as reported in v0.1.0 (reconstructed from git)

Published: when the source says it was published. Saved: the first capture into the evidence vault. The rest are this site: the release in which the fact first appeared and every release that changed its wording, sources or status.

What it rests on

What the PHP2Shell rumors got wrong, from inside the PHP s…fact leak-hn

Where this fact appears

In the briefings for:

And on every claim.

Every version of this fact

v1 · site v0.1.0 · 22 October 2026 · reported
The leak started with an anonymous Hacker News post citing a reliable source, which came down after screenshots spread; a screenshot of the 'PHP2Shell tool' credited to Calif.io and a short exploitation video also went up and came down
Who says it: Alexandre Daubois (PHP security team, personal blog)
Status: reported
Topic: leak
Sources: daubois-blog-php2shell-rumors