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Vulnerability details: VCID-nqky-8p8k-ryce
Vulnerability ID VCID-nqky-8p8k-ryce
Aliases CVE-2019-16220
Summary In WordPress before 5.2.3, validation and sanitization of a URL in wp_validate_redirect in wp-includes/pluggable.php could lead to an open redirect if a provided URL path does not start with a forward slash.
Status Published
Exploitability 0.5
Weighted Severity 5.5
Risk 2.8
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-601 URL Redirection to Untrusted Site ('Open Redirect')
System Score Found at
epss 0.00505 https://api.first.org/data/v1/epss?cve=CVE-2019-16220
epss 0.00505 https://api.first.org/data/v1/epss?cve=CVE-2019-16220
epss 0.00505 https://api.first.org/data/v1/epss?cve=CVE-2019-16220
epss 0.00505 https://api.first.org/data/v1/epss?cve=CVE-2019-16220
epss 0.00505 https://api.first.org/data/v1/epss?cve=CVE-2019-16220
epss 0.00505 https://api.first.org/data/v1/epss?cve=CVE-2019-16220
epss 0.00505 https://api.first.org/data/v1/epss?cve=CVE-2019-16220
epss 0.00505 https://api.first.org/data/v1/epss?cve=CVE-2019-16220
epss 0.00505 https://api.first.org/data/v1/epss?cve=CVE-2019-16220
epss 0.00505 https://api.first.org/data/v1/epss?cve=CVE-2019-16220
epss 0.00505 https://api.first.org/data/v1/epss?cve=CVE-2019-16220
epss 0.00505 https://api.first.org/data/v1/epss?cve=CVE-2019-16220
epss 0.00505 https://api.first.org/data/v1/epss?cve=CVE-2019-16220
epss 0.01318 https://api.first.org/data/v1/epss?cve=CVE-2019-16220
epss 0.01318 https://api.first.org/data/v1/epss?cve=CVE-2019-16220
cvssv2 5.8 https://nvd.nist.gov/vuln/detail/CVE-2019-16220
cvssv3.1 6.1 https://nvd.nist.gov/vuln/detail/CVE-2019-16220
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2019-16220
https://core.trac.wordpress.org/changeset/45971
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16217
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16218
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16219
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16220
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16221
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16222
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16223
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16780
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16781
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17669
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17671
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17672
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17673
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17674
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17675
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20041
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20042
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20043
https://github.com/WordPress/WordPress/commit/c86ee39ff4c1a79b93c967eb88522f5c09614a28
https://lists.debian.org/debian-lts-announce/2019/10/msg00023.html
https://medium.com/@theodorejackson.us/rediscovering-an-old-vulnerability-cve-2019-16220-d25cc441752f
https://seclists.org/bugtraq/2020/Jan/8
https://wordpress.org/news/2019/09/wordpress-5-2-3-security-and-maintenance-release/
https://wpvulndb.com/vulnerabilities/9863
https://www.debian.org/security/2020/dsa-4599
https://www.debian.org/security/2020/dsa-4677
939543 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=939543
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
CVE-2019-16220 https://nvd.nist.gov/vuln/detail/CVE-2019-16220
No exploits are available.
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2019-16220
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2019-16220
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.65217
EPSS Score 0.00505
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T10:05:49.686426+00:00 NVD Importer Import https://nvd.nist.gov/vuln/detail/CVE-2019-16220 37.0.0