WordPress <= 5.2.3 - JSON Request Cache Poisoning



Description
The fix sends the "Vary: Origin" response header for GET requests from unauthenticated users.

Affects WordPresses

fixed in version 5.2.4
fixed in version 5.2.4
fixed in version 5.2.4
fixed in version 5.2.4
fixed in version 5.1.3
fixed in version 5.1.3
fixed in version 5.1.3
fixed in version 5.0.7
fixed in version 5.0.7
fixed in version 5.0.7
fixed in version 5.0.7
fixed in version 5.0.7
fixed in version 5.0.7
fixed in version 4.9.12
fixed in version 4.9.12
fixed in version 4.9.12
fixed in version 4.9.12
fixed in version 4.9.12
fixed in version 4.9.12
fixed in version 4.9.12
fixed in version 4.9.12
fixed in version 4.9.12
fixed in version 4.9.12
fixed in version 4.9.12
fixed in version 4.9.12
fixed in version 4.8.11
fixed in version 4.8.11
fixed in version 4.8.11
fixed in version 4.8.11
fixed in version 4.8.11
fixed in version 4.8.11
fixed in version 4.8.11
fixed in version 4.8.11
fixed in version 4.8.11
fixed in version 4.8.11
fixed in version 4.8.11
fixed in version 4.7.15
fixed in version 4.7.15
fixed in version 4.7.15
fixed in version 4.7.15
fixed in version 4.7.15
fixed in version 4.7.15
fixed in version 4.7.15
fixed in version 4.7.15
fixed in version 4.7.15
fixed in version 4.7.15
fixed in version 4.7.15
fixed in version 4.7.15
fixed in version 4.7.15
fixed in version 4.7.15
fixed in version 4.7.15
fixed in version 4.6.16
fixed in version 4.6.16
fixed in version 4.6.16
fixed in version 4.6.16
fixed in version 4.6.16
fixed in version 4.6.16
fixed in version 4.6.16
fixed in version 4.6.16
fixed in version 4.6.16
fixed in version 4.6.16
fixed in version 4.6.16
fixed in version 4.6.16
fixed in version 4.6.16
fixed in version 4.6.16
fixed in version 4.6.16
fixed in version 4.6.16
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.5.19
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.4.20
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.3.21
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.2.25
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.1.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 4.0.28
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.9.29
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.8.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31
fixed in version 3.7.31

References

CVE 2019-17673
URL https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/
URL https://github.com/WordPress/WordPress/commit/b224c251adfa16a5f84074a3c0886270c9df38de
URL https://blog.wpscan.org/wordpress/security/release/2019/10/15/wordpress-524-security-release-breakdown.html

Classification

Type UNKNOWN

Miscellaneous

Original Researcher David Newman
Views 3091
Verified No
WPVDB ID 9911

Timeline

Publicly Published 2019-10-14 (about 2 months ago)
Added 2019-10-15 (about 2 months ago)
Last Updated 2019-11-28 (14 days ago)

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Online WordPress Vulnerability Scanner WPScan WordPress Security Plugin