What is CVE-2019-17671?

CVE-2019-17671 is a medium-severity vulnerability in WordPress, classified under Information Disclosure. CVSS score: 5.3/10. Published 2019-10-17.

How severe is CVE-2019-17671?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2019-17671 known to be exploited?

17 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Information disclosure in WordPress

CVE-2019-17671

In WordPress before 5.2.4, unauthenticated viewing of certain content is possible because the static query property is mishandled.

Vulnerability class: Information Disclosure

Published 2019-10-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.365 (98.4th percentile), scored 2026-09-30.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.365 · newest: 0.365 · change: 0.000

Affected products

WordPress
Debian Linux — versions 8.0, 9.0, 10.0

Weakness classification (CWE)

CWE-200 — Information Disclosure

Public proof-of-concept exploits

References

wpvulndb.com/vulnerabilities/9909 (Third Party Advisory)
blog.wpscan.org/wordpress/security/release/2019/10/15/wordpress-524-security-re… (Patch, Third Party Advisory)
wordpress.org/news/2019/10/wordpress-5-2-4-security-release/ (Release Notes, Vendor Advisory)
core.trac.wordpress.org/changeset/46474 (Patch, Vendor Advisory)
github.com/WordPress/WordPress/commit/f82ed753cf00329a5e41f2cb6dc521085136f308 (Patch, Third Party Advisory)
lists.debian.org/debian-lts-announce/2019/11/msg00000.html (mailing-list, Mailing List, Third Party Advisory)
seclists.org/bugtraq/2020/Jan/8 (mailing-list, Mailing List, Third Party Advisory)
www.debian.org/security/2020/dsa-4599 (vendor-advisory, Third Party Advisory)
www.debian.org/security/2020/dsa-4677 (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2019-17671?: CVE-2019-17671 is a medium-severity vulnerability in WordPress, classified under Information Disclosure. CVSS score: 5.3/10. Published 2019-10-17.
How severe is CVE-2019-17671?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2019-17671 known to be exploited?: 17 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.