What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-13 · updated 2026-10-26
• Weakness: CWE-403

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

• Pachno: 1.0.6

References

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

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