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CVE-2020-4048

21
FAUCET Score

CVE-2020-4048 is an open redirect vulnerability in WordPress, affecting versions prior to 5.4.2 and various older branches. It allows an attacker to craft a malicious URL that, when clicked, redirects users to an arbitrary external site due to improper URL sanitization. Rated as Medium severity (CVSS 5.7), this vulnerability requires user interaction (UI:R) and could lead to information disclosure (I:H) by redirecting users to phishing sites or malicious content. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.7, < 3.7.34CPE matchmatch criteria
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
>= 3.8, < 3.8.34CPE matchmatch criteria
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
>= 3.9, < 3.9.32CPE matchmatch criteria
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
>= 4.0, < 4.0.31CPE matchmatch criteria
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
>= 4.1, < 4.1.31CPE matchmatch criteria
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.7MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.1
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.25%
Probability of exploitation in next 30 days
EPSS Percentile
81.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0225 is in the 98th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / WordPress/wordpress-develop/commit/6ef777e9a022bee2a80fa671118e7e2657e52693
Patch
github.com / WordPress/wordpress-develop/security/advisories/GHSA-q6pw-gvf4-5fj5
Third Party Advisory
lists.debian.org / debian-lts-announce/2020/07/msg00000.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2020/09/msg00011.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/773N2ZV7QEMBGKH6FBKI6Q5S3YJMW357
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/ODNHXVJS25YVWYQHOCICXTLIN5UYJFDN
wordpress.org / news/2020/06/wordpress-5-4-2-security-and-maintenance-release
Release NotesVendor Advisory
debian.org / security/2020/dsa-4709
Mailing ListThird Party Advisory