CVE-2023-2806Public exploitNetwork attack vector

Authenticated server-file disclosure via external entity expansion

Published May 19, 2023 · Updated Nov 22, 2024

XML external entity injection in Weaver e-cology 9.0 allows remote authenticated users to read server files through the API. The /rest/ofs/RequestInfoByXml handler parses attacker-supplied XML with external entity resolution enabled, then places resolved file content in the response. A valid low-privileged session is required, and disclosure is limited to files readable by the application process.

CVSS severity8.8
High
EPSS probability0.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XML external entity injection in Weaver e-cology 9.0 allows remote authenticated users to read server files through the API. The /rest/ofs/RequestInfoByXml handler parses attacker-supplied XML with external entity resolution enabled, then places resolved file content in the response. A valid low-privileged session is required, and disclosure is limited to files readable by the application process.

The record

CVE
CVE-2023-2806
Published
May 19, 2023
Updated
Nov 22, 2024
Vendor
Weaver Network Technology Co., Ltd.
Product
e-cology
Classifications
CWE-611, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 22, 2024Record 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=9.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Weaver Network Technology Co., Ltd. · e-cologyversion=9.0

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.2VulDBAV:A/AC:L/Au:S/C:P/I:P/A:P
5.5VulDBCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
T1005Data from Local System

Public exploit references

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Technologies

Your stack

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Your stack

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