CVE-2026-2861— Foswiki Changes/Viewfile/Oops information disclosure
Quick assessment
Affected
n/a Foswiki
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.
Foswiki是一个用 Perl 语言开发的 Wiki 软件。Foswiki是一个真正的自由且开放源码的Wiki和用户建立应用程式的平台，适合公共和企业环境使用。 Foswiki 2.1.10及之前版本存在访问控制错误漏洞，该漏洞源于Changes/Viewfile/Oops组件存在信息泄露。
Possible ATT&CK Techniques 1 AI
T1005 · Data from Local System
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I. Basic Information for CVE-2026-2861
Vulnerability Information
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Vulnerability Title
Foswiki Changes/Viewfile/Oops information disclosure
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in Foswiki up to 2.1.10. The affected element is an unknown function of the component Changes/Viewfile/Oops. The manipulation results in information disclosure. It is possible to launch the attack remotely. The exploit is now public and may be used. Upgrading to version 2.1.11 is sufficient to fix this issue. The patch is identified as 31aeecb58b64/d8ed86b10e46. Upgrading the affected component is recommended.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Foswiki 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Foswiki是一个用 Perl 语言开发的 Wiki 软件。Foswiki是一个真正的自由且开放源码的Wiki和用户建立应用程式的平台，适合公共和企业环境使用。 Foswiki 2.1.10及之前版本存在访问控制错误漏洞，该漏洞源于Changes/Viewfile/Oops组件存在信息泄露。
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 |
|---|---|---|---|---|
| - | Foswiki | 2.1.0 | - |
|
II. Public POCs for CVE-2026-2861
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-2861 (2)
-
🔗 Submit #753966: Foswiki 2.1.10 and before Information Disclosure Read full article third-party-advisory
-
Same Patch Batch · n/a · 2026-02-21 · 5 CVEs total
| CVE-2026-2896 | 7.3 HIGH | funadmin Configuration Ajax.php setConfig improper authorization |
| CVE-2026-2894 | 5.3 MEDIUM | funadmin forget.html getMember information disclosure |
| CVE-2026-2895 | 3.7 LOW | funadmin Member.php repass password recovery |
| CVE-2026-2889 | 3.3 LOW | CCExtractor mp4.c processmp4 use after free |
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V. Comments for CVE-2026-2861
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