CVE-2019-17673

high

Description

WordPress before 5.2.4 is vulnerable to poisoning of the cache of JSON GET requests because certain requests lack a Vary: Origin header.

References

Advisories
More

https://www.debian.org/security/2020/dsa-4677

https://www.debian.org/security/2020/dsa-4599

https://wpvulndb.com/vulnerabilities/9911

https://seclists.org/bugtraq/2020/Jan/8

https://github.com/WordPress/WordPress/commit/b224c251adfa16a5f84074a3c0886270c9df38de

https://blog.wpscan.org/wordpress/security/release/2019/10/15/wordpress-524-security-release-breakdown.html

https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/

https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-7978

https://core.trac.wordpress.org/changeset/46478

Details

Source: Mitre, NVD

Published: 2019-10-17

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Severity: High

EPSS

EPSS: 0.03531