CVE-2019-13478
The Yoast SEO plugin before 11.6-RC5 for WordPress does not properly restrict unfiltered HTML in...
CVE-2019-13478 is a critical vulnerability (CVSS 9.9) in Yoast Seo, published July 9, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.30%, the 88th percentile. No source names a fixed version.
- Severity
- 9.9 CriticalCVSS 3.0, CVE List
- Exploit chance
- 3.30%EPSS, 88th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
The Yoast SEO plugin before 11.6-RC5 for WordPress does not properly restrict unfiltered HTML in term descriptions.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- Low
Exploit likelihood
Affected products
What each source reports
CVE List Score used
The Yoast SEO plugin before 11.6-RC5 for WordPress does not properly restrict unfiltered HTML in term descriptions.
- Record
CVE-2019-13478- CVSS 3.0
- 9.9 Critical
CVSS:3.0/AC:L/AV:N/A:L/C:H/I:H/PR:L/S:C/UI:N - Updated
- 2026-11-02
EUVDEUVD-2019-4946
The Yoast SEO plugin before 11.6-RC5 for WordPress does not properly restrict unfiltered HTML in term descriptions.
- Record
EUVD-2019-4946- CVSS 3.0
- 9.9 Critical
CVSS:3.0/AC:L/AV:N/A:L/C:H/I:H/PR:L/S:C/UI:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wq5j-p8j8-wx7p
The Yoast SEO plugin before 11.6-RC5 for WordPress does not properly restrict unfiltered HTML in...
The Yoast SEO plugin before 11.6-RC5 for WordPress does not properly restrict unfiltered HTML in term descriptions.
- Record
GHSA-wq5j-p8j8-wx7p- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
The Yoast SEO plugin before 11.6-RC5 for WordPress does not properly restrict unfiltered HTML in term descriptions.
- Record
CVE-2019-13478- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 3.0
- 9.9 Critical
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
The Yoast SEO plugin before 11.6-RC5 for WordPress does not properly restrict unfiltered HTML in term descriptions.
- Record
CVE-2019-13478- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.