Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Pheditor (Packagist package pheditor/pheditor) versions 2.0.1 up to but not including 2.0.6 ship with a hardcoded default password, "admin", and no forced change on first login. An unauthenticated remote attacker who knows or guesses this password can log in and use the file editor, file upload and terminal features, which allows arbitrary file reading and writing and remote code execution. Upgrade to version 2.0.6, and change the default password on any installation still using it.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 9.8 | Critical | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0079, the 56th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:25 UTC First seen by agentprime
- 31 Oct 2026, 14:25 UTC Confirmed by OSV