CVE-2022-0217

HIGH

prosody < 0.11.12 - XML External Entity Injection via libexpat Library

Title source: llm
STIX 2.1

Description

It was discovered that an internal Prosody library to load XML based on libexpat does not properly restrict the XML features allowed in parsed XML data. Given suitable attacker input, this results in expansion of recursive entity references from DTDs (CWE-776). In addition, depending on the libexpat version used, it may also allow injections using XML External Entity References (CWE-611).

References (3)

Core 3
Core References
Issue Tracking, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=2040639
Exploit, Patch, Vendor Advisory x_refsource_misc
https://prosody.im/security/advisory_20220113/
Patch, Vendor Advisory x_refsource_misc
https://prosody.im/security/advisory_20220113/1.patch

Scores

CVSS v3 7.5
EPSS 0.0440
EPSS Percentile 90.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-776 CWE-611
Status published
Products (1)
prosody/prosody < 0.11.12
Published Aug 26, 2022
Tracked Since Feb 18, 2026