CVE-2020-8116
Prototype pollution vulnerability in dot-prop npm package versions before 4.2.1 and versions 5.x before 5.1.1 allows an attacker to add arbitrary properties to JavaScript language constructs such as objects.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.08%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Prototype pollution vulnerability in dot-prop npm package versions before 4.2.1 and versions 5.x before 5.1.1 allows an attacker to add arbitrary properties to JavaScript language constructs such as objects.
- CVSS 3.1
- 7.3 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- EPSS
- 3.08% probability · 88th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-471, CWE-1321
- Affected
- dot-prop project/dot-prop
- Source
- support@hackerone.com
EPSS 3.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/advisories/GHSA-ff7x-qrg7-qggmThird Party Advisory
- https://github.com/sindresorhus/dot-prop/issues/63Issue Tracking, Patch, Third Party Advisory
- https://github.com/sindresorhus/dot-prop/tree/v4Broken Link
- https://hackerone.com/reports/719856Exploit, Third Party Advisory
- https://github.com/advisories/GHSA-ff7x-qrg7-qggmThird Party Advisory
- https://github.com/sindresorhus/dot-prop/issues/63Issue Tracking, Patch, Third Party Advisory
- https://github.com/sindresorhus/dot-prop/tree/v4Broken Link
- https://hackerone.com/reports/719856Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.