CVE-2020-37279
easy-pdf-merge 0.1.0 through 0.2.6 contains an OS command injection vulnerability that allows attackers to execute commands by injecting shell metacharacters into source paths, destination path, or maxHeap option.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.88%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
easy-pdf-merge 0.1.0 through 0.2.6 contains an OS command injection vulnerability that allows attackers to execute commands by injecting shell metacharacters into source paths, destination path, or maxHeap option. Attackers can supply file names or options containing double quotes, semicolons, $() or backticks, which child_process.exec() runs through a shell with the Node.js process privileges.
- CVSS 4.0
- 9.2 CRITICALCVSS:4.0/AV:N/AC:L/AT:P/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/M
- EPSS
- 1.88% probability · 79th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Source
- disclosure@vulncheck.com
EPSS moved from 1.5% on 13 October 2026 to 1.9% on 26 October 2026.
References
- https://github.com/karuppiah7890/easy-pdf-merge
- https://github.com/karuppiah7890/easy-pdf-merge/blob/v0.2.6/source/lib/PDFMerger.js#L71-L75
- https://github.com/karuppiah7890/easy-pdf-merge/pull/28
- https://github.com/karuppiah7890/easy-pdf-merge/pull/45
- https://www.vulncheck.com/advisories/easy-pdf-merge-0.1.0-through-0.2.6-os-command-injection-via-merge-function
- https://github.com/karuppiah7890/easy-pdf-merge/pull/28
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.