CVE-2020-5227

Katalog CVE

CVSS 7.5 · High EPSS 2,2%

Kerentanan Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') pada feedgen project feedgen. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

Feedgen (python feedgen) before 0.9.0 is susceptible to XML Denial of Service attacks. The *feedgen* library allows supplying XML as content for some of the available fields. This XML will be parsed and integrated into the existing XML tree. During this process, feedgen is vulnerable to XML Denial of Service Attacks (e.g. XML Bomb). This becomes a concern in particular if feedgen is used to include content from untrused sources and if XML (including XHTML) is directly included instead of providing plain tex content only. This problem has been fixed in feedgen 0.9.0 which disallows XML entity expansion and external resources.

Rincian

Terbit di NVD

28 Januari 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

EPSS (30 hari)

2,2% peluang dieksploitasi; lebih tinggi dari 81,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://docs.microsoft.com/en-us/archive/msdn-magazine/2009/november/xml-denial-of-service-attacks-and-defense... exploit · patch · advisory pihak ketiga · advisory vendor
• https://github.com/lkiesow/python-feedgen/commit/f57a01b20fa4aaaeccfa417f28e66b4084b9d0cf patch
• https://github.com/lkiesow/python-feedgen/security/advisories/GHSA-g8q7-xv52-hf9f advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T6I5ENUYGFNMI...