Vulnerability · Published Apr 13, 2026 · Assigned by VulnCheck

CVE-2026-40042Pachno 1.0.6 Wiki TextParser XML External Entity Injection

Critical 9.8

In plain English

A critical-severity security flaw in Pachno from Pachno. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)0.4%top 68.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Pachno	Pachno	1.0.6

Weakness: CWE-403 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Zero Science Lab Disclosure third-party-advisory
VulnCheck Advisory: Pachno 1.0.6 Wiki TextParser XML External Entity Injection third-party-advisory