Low severity · published Jun 12, 2020
CVE-2020-4050
In affected versions of WordPress, misuse of the `set-screen-option` filter's return value allows arbitrary user meta fields to be saved
3.1
CVSS
1.4%
EPSS
No
On KEV
Description
In affected versions of WordPress, misuse of the `set-screen-option` filter's return value allows arbitrary user meta fields to be saved. It does require an admin to install a plugin that would misuse the filter. Once installed, it can be leveraged by low privileged users. This has been patched in version 5.4.2, along with all the previously affected versions via a minor release (5.3.4, 5.2.7, 5.1.6, 5.0.10, 4.9.15, 4.8.14, 4.7.18, 4.6.19, 4.5.22, 4.4.23, 4.3.24, 4.2.28, 4.1.31, 4.0.31, 3.9.32, 3.8.34, 3.7.34).
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WO
WordPress · WordPress
3.7 before 3.7.34; 3.8 before 3.8.34; 3.9 before 3.9.32; 4.0 before 4.0.31; 4.1 before 4.1.31; 4.2 before 4.2.28; +12 more · source: NVD
DL
Debian Linux · Debian
8.0; 9.0; 10.0 · source: NVD
FE
Fedora · Fedoraproject
31; 32 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-4050
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-4050
Patch
https://github.com/WordPress/wordpress-develop/commit/b8dea76b495f0072523106c6ec46b9ea0d2a0920
Third Party Advisory
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-4vpv-fgg2-gcqc
Mailing List
https://lists.debian.org/debian-lts-announce/2020/07/msg00000.html
Mailing List
https://lists.debian.org/debian-lts-announce/2020/09/msg00011.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/773N2ZV7QEMBGKH6FBKI6Q5S3YJMW357/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODNHXVJS25YVWYQHOCICXTLIN5UYJFDN/
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