Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2021-4271— panicsteve w2wiki Markdown index.php toHTML cross site scripting

Quick assessment

Affected
panicsteve w2wiki
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.

w2wiki是Steven Frank个人开发者的一个基于 web 的类似 wiki 的记事本。 w2wiki存在安全漏洞，该漏洞源于组件 Markdown Handler 的文件 index.php 的 toHTML 函数， 参数查询的操作导致跨站脚本。

CVSS 3.5 · Low EPSS 0.34% · P28
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-4271

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
panicsteve w2wiki Markdown index.php toHTML cross site scripting
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in panicsteve w2wiki. It has been rated as problematic. Affected by this issue is the function toHTML of the file index.php of the component Markdown Handler. The manipulation leads to cross site scripting. The attack may be launched remotely. The name of the patch is 8f1d0470b4ddb1c7699e3308e765c11ed29542b6. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-216476.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对消息或数据结构的处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
w2wiki 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
w2wiki是Steven Frank个人开发者的一个基于 web 的类似 wiki 的记事本。 w2wiki存在安全漏洞，该漏洞源于组件 Markdown Handler 的文件 index.php 的 toHTML 函数， 参数查询的操作导致跨站脚本。
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
panicsteve w2wiki n/a -

II. Public POCs for CVE-2021-4271

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-4271

请登录查看更多情报信息。

Patches & Fixes for CVE-2021-4271 (1)

Vendor Advisories for CVE-2021-4271 (1)

IV. Related Vulnerabilities

Same weakness: CWE-707

V. Comments for CVE-2021-4271

No comments yet

Leave a comment