Description
Stills before 25.24.2 contains an OS command injection vulnerability that allows attackers to execute shell commands by supplying crafted media file paths. Attackers can name a media file with $(...) or backticks to execute operating system commands with Node.js process privileges when ffmpeg, ffprobe, gifsicle, or convert runs.
References7
- github.com/shahkashani/stills/blob/66d5def1265b817d84524473a281…
- github.com/shahkashani/stills/blob/66d5def1265b817d84524473a281…
- github.com/shahkashani/stills/commit/51ba953983ba99915331607bf8…
- github.com/shahkashani/stills/commit/5694b3b0dcd2da342f4f049724…
- github.com/shahkashani/stills/pull/29
- github.com/shahkashani/stills/pull/30
- www.vulncheck.com/advisories/stills-before-25.24.2-os-command-i…
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 4.0
-
9.3
CRITICAL
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 3% percentile: 85 · as of 11 November 2026
- CWE
- CWE-78
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.