What is CVE-2019-16769?

CVE-2019-16769 is a medium-severity vulnerability in Yahoo Serialize-javascript, classified under Cross-site Scripting. CVSS score: 4.2/10. Published 2019-12-05.

How severe is CVE-2019-16769?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Is CVE-2019-16769 known to be exploited?

5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Yahoo Serialize-javascript

CVE-2019-16769

The serialize-javascript npm package before version 2.1.1 is vulnerable to Cross-site Scripting (XSS). It does not properly mitigate against unsafe characters in serialized regular expressions. This vulnerability is not affected on Node.js…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (61.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L.

Affected products

Yahoo Serialize-javascript — versions < 2.1.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

github.com/yahoo/serialize-javascript/security/advisories/GHSA-h9rv-jmmf-4pgx (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2019-16769?: CVE-2019-16769 is a medium-severity vulnerability in Yahoo Serialize-javascript, classified under Cross-site Scripting. CVSS score: 4.2/10. Published 2019-12-05.
How severe is CVE-2019-16769?: Medium severity. CVSS v3 base score is 4.2 out of 10.
Is CVE-2019-16769 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.