XML External Entity vulnerability in Easy-XML

published 2021-10-31 5y ago modified 2026-06-17 4mo ago also GHSA-v899-28g4-qmh8 , PYSEC-2021-388 , EUVD-2021-0069

cvss: 9.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits: 0; none known

The parseXML function in Easy-XML 0.5.0 was discovered to have a XML External Entity (XXE) vulnerability which allows for an attacker to expose sensitive data or perform a denial of service (DOS) via a crafted external entity entered into the XML content as input.

Patch / fix

links 1

github.com/darkfoxprime/python-easy_xml/issues/1 advisory

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Exploit prediction

1.33% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD	2.0	6.4	AV:N/AC:L/Au:N/C:P/I:N/A:P
GitHub	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected packages

ecosystem	package	affected	fixed in
pypi	easy-xml	<=0.5.0 all versions	no fix listed

Classification

Weakness

CWE-611 Improper Restriction of XML External Entity Reference

References

github.com /darkfoxprime/python-easy_xml/issues/1
web, patch, third-party-advisory, report
nvd.nist.gov /vuln/detail/CVE-2020-26705
advisory
github.com /advisories/GHSA-v899-28g4-qmh8
advisory
github.com /darkfoxprime/python-easy_xml
package
github.com /pypa/advisory-database/tree/main/vulns/easy-xml/PYSEC-2021-388.yaml
web

Sources

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