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CVE-2019-16220

22
FAUCET Score

CVE-2019-16220 is an open redirect vulnerability affecting WordPress versions prior to 5.2.3, specifically within the wp_validate_redirect function. This medium-severity vulnerability (CVSS 6.1) allows an unauthenticated attacker to redirect users to arbitrary external sites by crafting a malicious URL that bypasses validation, requiring user interaction. While the potential impact includes information disclosure and limited integrity compromise, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.2.3CPE matchmatch criteria
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.55%
Probability of exploitation in next 30 days
EPSS Percentile
83.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0255 is in the 92nd percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 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 0.1 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

medium.com / @theodorejackson.us/rediscovering-an-old-vulnerability-cve-2019-16220-d25cc441752f
core.trac.wordpress.org / changeset/45971
PatchVendor Advisory
github.com / WordPress/WordPress/commit/c86ee39ff4c1a79b93c967eb88522f5c09614a28
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2019/10/msg00023.html
Mailing ListThird Party Advisory
seclists.org / bugtraq/2020/Jan/8
Mailing ListThird Party Advisory
wordpress.org / news/2019/09/wordpress-5-2-3-security-and-maintenance-release
Release NotesVendor Advisory
wpvulndb.com / vulnerabilities/9863
Third Party Advisory
debian.org / security/2020/dsa-4599
Third Party Advisory
debian.org / security/2020/dsa-4677
Third Party Advisory