CVE-2020-13692Network attack vector

Data disclosure via unrestricted external entity resolution

Published Jun 4, 2020 · Updated Aug 4, 2024

XXE in PgSQLXML in PostgreSQL JDBC Driver before 42.2.13 allows attackers to read local files through crafted stored XML. PgSQLXML passes stored XML to default DOM, SAX, StAX, and transformer factories without disabling DTDs or external entity resolution. Exploitation requires attacker-controlled XML to be stored and processed through PgSQLXML; entity resolution can disclose files, issue server-side requests, or exhaust resources.

CVSS severity7.7
High
EPSS probability4.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XXE in PgSQLXML in PostgreSQL JDBC Driver before 42.2.13 allows attackers to read local files through crafted stored XML. PgSQLXML passes stored XML to default DOM, SAX, StAX, and transformer factories without disabling DTDs or external entity resolution. Exploitation requires attacker-controlled XML to be stored and processed through PgSQLXML; entity resolution can disclose files, issue server-side requests, or exhaust resources.

The record

CVE
CVE-2020-13692
Published
Jun 4, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-611, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 4, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.7GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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

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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