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CVE-2026-101005— October CMS SSRF Protection ResizeImages.php validateExternalImageHost server-side request forgery

Quick assessment

Affected
n/a October CMS
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.

在 October CMS 4.3.4 及更早版本中检测到一起安全漏洞。该漏洞影响 SSRF 保护组件中文件 的 函数。攻击者通过构造恶意请求，可导致服务器端请求伪造（SSRF）。该漏洞支持远程攻击，且相关利用代码已公开，可被直接使用。建议升级至版本 4.3.5 以缓解此问题，受影响组件应立即进行升级。

CVSS 7.3 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-101005

Vulnerability Information
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Vulnerability Title
October CMS SSRF Protection ResizeImages.php validateExternalImageHost server-side request forgery
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in October CMS up to 4.3.4. This affects the function validateExternalImageHost of the file System/Classes/ResizeImages.php of the component SSRF Protection. The manipulation results in server-side request forgery. The attack may be launched remotely. The exploit is now public and may be used. Upgrading to version 4.3.5 is able to mitigate this issue. You should upgrade the affected component.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
- October CMS 4.3.0 cpe:2.3:a:october_cms:october_cms:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-101005

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III. Intelligence Information for CVE-2026-101005

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News Coverage for CVE-2026-101005 (1)

Other References for CVE-2026-101005 (6)

Same Patch Batch · n/a · 2026-09-28 · 5 CVEs total

CVE-2026-100908 7.5 HIGH Eyeplus p2pcam HTTP stack-based overflow
CVE-2026-100909 7.3 HIGH OctoberCMS ResizeImages.php getSourcePathForResize server-side request forgery
CVE-2026-100907 5.3 MEDIUM Eyeplus p2pcam Service snapshot information disclosure
CVE-2026-100906 5.3 MEDIUM Eyeplus ONVIF Device GetUsers information disclosure

IV. Related Vulnerabilities

Same vendor: n/a
Same weakness: CWE-918

V. Comments for CVE-2026-101005

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