CVE-2022-0198Public exploit

Local data disclosure via external XML entities

Published Jan 13, 2022 · Updated Aug 2, 2024

XXE in TransformXML in Stanford CoreNLP before 4.3.3 allows context-dependent attackers to read local data through crafted XML. TransformXML creates its SAXParser from a SAXParserFactory without enabling FEATURE_SECURE_PROCESSING, so the parser resolves attacker-controlled external entities. Exploitation requires a victim application or user to pass crafted XML to this utility; parser access can expose local data or trigger outbound requests.

CVSS severity7.1
High
EPSS probability0.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XXE in TransformXML in Stanford CoreNLP before 4.3.3 allows context-dependent attackers to read local data through crafted XML. TransformXML creates its SAXParser from a SAXParserFactory without enabling FEATURE_SECURE_PROCESSING, so the parser resolves attacker-controlled external entities. Exploitation requires a victim application or user to pass crafted XML to this utility; parser access can expose local data or trigger outbound requests.

The record

CVE
CVE-2022-0198
Published
Jan 13, 2022
Updated
Aug 2, 2024
Vendor
Stanford NLP Group
Product
Stanford CoreNLP
Classifications
CWE-611, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=unspecified <4.3.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Stanford NLP Group · Stanford CoreNLPversion=unspecified <4.3.3

Published CVSS scores

5.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:N
6.1huntr.devCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
T1203Exploitation for Client Execution

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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