High severity · published Oct 17, 2019
CVE-2019-17673
WordPress before 5.2.4 is vulnerable to poisoning of the cache of JSON GET requests because certain requests lack a Vary: Origin header
7.5
CVSS
3.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.5% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WO
WordPress · WordPress
before 5.2.4 · source: NVD
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-17673
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-17673
Third Party Advisory
https://blog.wpscan.org/wordpress/security/release/2019/10/15/wordpress-524-security-release-breakdown.html
Patch
https://core.trac.wordpress.org/changeset/46478
Patch
https://github.com/WordPress/WordPress/commit/b224c251adfa16a5f84074a3c0886270c9df38de
Mailing List
https://seclists.org/bugtraq/2020/Jan/8
Release Notes
https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/
Third Party Advisory
https://wpvulndb.com/vulnerabilities/9911
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