CVE-2017-1000048
Prototype Pollution Protection Bypass in qs
Description
Affected version of `qs` are vulnerable to Prototype Pollution because it is possible to bypass the protection. The `qs.parse` function fails to properly prevent an object's prototype to be altered when parsing arbitrary input. Input containing `[` or `]` may bypass the prototype pollution protection and alter the Object prototype. This allows attackers to override properties that will exist in all objects, which may lead to Denial of Service or Remote Code Execution in specific circumstances. ## Recommendation Upgrade to 6.0.4, 6.1.2, 6.2.3, 6.3.2 or later.
How to fix CVE-2017-1000048
To remediate CVE-2017-1000048, upgrade the affected package to a fixed version below.
- —upgrade to 6.0.4 or later
Is CVE-2017-1000048 being exploited?
Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 6.0.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |