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CVE-2020-6836

CRITICAL
9.8
CVSS Score
Published: January 11, 2020 at 12:42 AM UTC
Updated: June 17, 2026 at 03:23 AM UTC
1 product affected across 1 vendorHot Formula Parser

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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%

Description

grammar-parser.jison in the hot-formula-parser package before 3.0.1 for Node.js is vulnerable to arbitrary code injection. The package fails to sanitize values passed to the parse function and concatenates them in an eval call. If a value of the formula is taken from user-controlled input, it may allow attackers to run arbitrary commands on the server.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Hot Formula Parser· Hot Formula Parser Projectnpm
95%
v < 3.0.1
Affected range stops below 3.0.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

x_refsource_MISC
Source: [email protected]
https://blog.truesec.com/2020/01/17/reverse-shell-through-a-node-js-math-parser/
x_refsource_MISCPatch
Source: [email protected]
https://github.com/handsontable/formula-parser/commit/396b089738d4bf30eb570a4fe6a188affa95cd5e
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://www.npmjs.com/advisories/1439

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-94

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