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CVE-2019-20043

MEDIUM
4.3
CVSS Score
Published: December 27, 2019 at 07:14 AM UTC
Updated: June 17, 2026 at 02:29 AM UTC
2 products affected across 2 vendorsDebian LinuxWordPress

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Severity
MEDIUM4.3
Exploit prediction
EPSS 2%

Description

In in wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php in WordPress 3.7 to 5.3.0, authenticated users who do not have the rights to publish a post are able to mark posts as sticky or unsticky via the REST API. For example, the contributor role does not have such rights, but this allowed them to bypass that. This has been patched in WordPress 5.3.1, along with all the previous WordPress versions from 3.7 to 5.3 via a minor release.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
10.09.0
WordPress· WordPressdrupal
95%
3.7 ≤ v < 5.3.1
Affected range stops below 5.3.1, so it looks safe — our inference, not a vendor statement

References (8)

x_refsource_MISCPatch
Source: [email protected]
https://core.trac.wordpress.org/changeset/46893/trunk
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/WordPress/wordpress-develop/commit/1d1d5be7aa94608c04516cac4238e8c22b93c1d9
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-g7rg-hchx-c2gw
Mailing Listx_refsource_BUGTRAQThird Party Advisory
Source: [email protected]
https://seclists.org/bugtraq/2020/Jan/8
x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://wpvulndb.com/vulnerabilities/9973
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2020/dsa-4599
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2020/dsa-4677

CVSS

4.3MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-269

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