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CVE-2021-25987— Hexo - Stored XSS

Quick assessment

Affected
Hexo Hexo
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.

Hexo是中国Tommy Chen个人开发者的一个快速、简单且强大的博客框架。 Hexo 存在跨站脚本漏洞，该漏洞源于Hexo版本0.0.1到5.4.0在网页生成过程中，帖子的主体和标签不会对恶意javascript进行消毒。攻击者可利用该漏洞注入任意代码。

CVSS 5.0 · Medium EPSS 0.33% · P26
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I. Basic Information for CVE-2021-25987

Vulnerability Information
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Vulnerability Title
Hexo - Stored XSS
Source: CVE Program / CVE List V5
Vulnerability Description
Hexo versions 0.0.1 to 5.4.0 are vulnerable against stored XSS. The post “body” and “tags” don’t sanitize malicious javascript during web page generation. Local unprivileged attacker can inject arbitrary code.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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
Vulnerability Title
Hexo 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hexo是中国Tommy Chen个人开发者的一个快速、简单且强大的博客框架。 Hexo 存在跨站脚本漏洞，该漏洞源于Hexo版本0.0.1到5.4.0在网页生成过程中，帖子的主体和标签不会对恶意javascript进行消毒。攻击者可利用该漏洞注入任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Hexo Hexo unspecified ~ 5.4.0 -

II. Public POCs for CVE-2021-25987

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III. Intelligence Information for CVE-2021-25987

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Patches & Fixes for CVE-2021-25987 (1)

Other References for CVE-2021-25987 (1)

IV. Related Vulnerabilities

Same weakness: CWE-79

V. Comments for CVE-2021-25987

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