CVE-2013-4334Network attack vector

Server file disclosure via external entity resolution

Published Feb 7, 2020 · Updated Aug 6, 2024

XXE in Tejimaya opWebAPIPlugin 0.1.0, 0.4.0, and 0.5.1 allows remote attackers to read server files via crafted XML. The AtomPub and GData document constructors pass untrusted request bodies to SimpleXML without disabling external entity loading. No authentication is required, and successful entity resolution exposes server data or exhausts server resources.

CVSS severity9.8
Critical
EPSS probability1.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XXE in Tejimaya opWebAPIPlugin 0.1.0, 0.4.0, and 0.5.1 allows remote attackers to read server files via crafted XML. The AtomPub and GData document constructors pass untrusted request bodies to SimpleXML without disabling external entity loading. No authentication is required, and successful entity resolution exposes server data or exhausts server resources.

The record

CVE
CVE-2013-4334
Published
Feb 7, 2020
Updated
Aug 6, 2024
Vendor
Tejimaya
Product
opWebAPIPlugin
Classifications
CWE-611, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 7, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 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=0.1.0.1)
  2. Affected versionversion=0.1.0 (Fixed: 0.5.1.1
  3. Affected versionversion=0.4.0
  4. Affected versionversion=0.4.0.1
  5. Affected versionversion=0.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Tejimaya · opWebAPIPluginversion=0.1.0.1); version=0.1.0 (Fixed: 0.5.1.1; version=0.4.0; version=0.4.0.1; version=0.5.1

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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