Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Webtrees (Packagist package fisharebest/webtrees) is affected in versions up to and including 2.1.18, and no fixed version is listed. An attacker who already has administrator access can manipulate the media_folder parameter to read files outside the intended media directory, reaching sensitive files elsewhere in the application's file system. The source gives few details beyond this, and no fix or workaround is listed.
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 |
|---|---|---|---|---|
| 4.9 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.0088, the 59th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:03 UTC First seen by agentprime
- 31 Oct 2026, 14:03 UTC Confirmed by OSV