Medium severity · published Oct 22, 2026
CVE-2026-112867
WordPress H5P plugin <= 1.17.9 - Cross Site Scripting (XSS) vulnerability
New
6.5
CVSS
0.2%
EPSS
No
On KEV
Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in H5P H5P h5p allows Stored XSS.This issue affects H5P: from n/a through 1.17.9.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
H5
H5P · H5P
through 1.17.9 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-112867
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-112867
patchstack.com
https://patchstack.com/database/wordpress/plugin/h5p/vulnerability/wordpress-h5p-plugin-1-17-9-cross-site-scripting-xss-vulnerability?_s_id=cve
More from H5P
7.1
CVE-2026-56006
WordPress H5P plugin <= 1.17.6 - Reflected Cross Site Scripting (XSS) vulnerability
5.4
CVE-2024-3111
The Interactive Content WordPress plugin before 1.15.8 does not validate uploads which could allow a Contributors and above to update malicious SVG files, leading to Stored…
4.3
CVE-2026-112868
WordPress H5P plugin <= 1.17.9 - Insecure Direct Object References (IDOR) vulnerability