CVE-2026-40042

critical · 9.3

Pachno 1.0.6 contains an XML external entity injection vulnerability that allows unauthenticated attackers to read arbitrary files by exploiting unsafe XML parsing in the TextParser helper. Attackers can inject malicious XML entities through wiki table syntax and inline tags in issue descriptions, comments, and wiki articles to trigger entity resolution via simplexml_load_string() without LIBXML_NONET restrictions.

9.3

CVSS

0.4%

EPSS (exploit prob.)

31st

EPSS percentile

2026-04-13

Published

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-403

References

https://www.vulncheck.com/advisories/pachno-wiki-textparser-xml-external-entity-injection
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2026-5984.php

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-40042