The Yoast SEO plugin before 11.6-RC5 for WordPress does not properly restrict unfiltered HTML in term descriptions.
CVE-2019-13478
CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence
Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-24. NVD baseline CVSS 9.8; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 3%CVSS: 9.8Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EPSS
- 87.1%
- KEV
- Not listed
Published
July 9, 2019
Last Modified
November 21, 2024
Advisory Details (1)
Auto-updated Jun 8, 2026Patch available. Sources: github_release.
github_release Patch Available
Release 11.6-RC5 (Yoast/wordpress-seo)
Patch available: Yoast/wordpress-seo 11.6-RC5 (pre-release)
https://github.com/Yoast/wordpress-seo/releases/tag/11.6-RC5Frequently asked(5)
What is CVE-2019-13478?
CVE-2019-13478 is a critical vulnerability published on July 9, 2019. The Yoast SEO plugin before 11.6-RC5 for WordPress does not properly restrict unfiltered HTML in term descriptions.
When was CVE-2019-13478 disclosed?
CVE-2019-13478 was first published in the National Vulnerability Database on July 9, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-13478 actively exploited?
CVE-2019-13478 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 87.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-13478?
CVE-2019-13478 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2019-13478?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-13478, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2019-13478
Is Your Infrastructure Affected by CVE-2019-13478?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.