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CVE-2026-112867— WordPress H5P plugin <= 1.17.9 - Cross Site Scripting (XSS) vulnerability

Quick assessment

Affected
H5P H5P
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

H5P 的 h5p 组件中存在“在生成网页时未正确清理输入”的漏洞（即跨站脚本攻击，XSS），可导致存储型跨站脚本攻击（Stored XSS）。该问题影响 H5P 的以下版本：从未知版本（n/a）至 1.17.9。

CVSS 6.5 · Medium
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I. Basic Information for CVE-2026-112867

Vulnerability Information
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Vulnerability Title
WordPress H5P plugin <= 1.17.9 - Cross Site Scripting (XSS) vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
H5P H5P 0 ~ 1.17.9 -

II. Public POCs for CVE-2026-112867

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III. Intelligence Information for CVE-2026-112867

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Other References for CVE-2026-112867 (1)

IV. Related Vulnerabilities

Same product: H5P
Same vendor: H5P
Same weakness: CWE-79

V. Comments for CVE-2026-112867

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