CVE-2026-7291Public exploitNetwork attack vector

Authenticated internal resource disclosure via unrestricted URL fetch

Published Apr 28, 2026 · Updated Apr 28, 2026

SSRF in O2OA 10.0 allows remote authenticated users to read internal HTTP resources through the URL-based file upload endpoint. ActionUploadWithUrl passes the user-controlled fileUrl directly to CipherConnectionAction.getBinary while the default wildcard HTTP allowlist disables host filtering. Any non-anonymous account can fetch loopback or internal HTTP content, persist the response as a file, and retrieve its bytes through the download API.

CVSS severity6.3
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in O2OA 10.0 allows remote authenticated users to read internal HTTP resources through the URL-based file upload endpoint. ActionUploadWithUrl passes the user-controlled fileUrl directly to CipherConnectionAction.getBinary while the default wildcard HTTP allowlist disables host filtering. Any non-anonymous account can fetch loopback or internal HTTP content, persist the response as a file, and retrieve its bytes through the download API.

The record

CVE
CVE-2026-7291
Published
Apr 28, 2026
Updated
Apr 28, 2026
Vendor
Zhejiang Zoneland Zongheng Network Technology Co., Ltd.
Product
O2OA
Classifications
CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Zhejiang Zoneland Zongheng Network Technology Co., Ltd. · O2OAversion=10.0

Published CVSS scores

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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