Paper/Archive/CVE-2026-40044

CVE-2026-40044

Pachno Pachno — Pachno 1.0.6 FileCache Deserialization Remote Code Execution

Description · from the CVE record

Pachno 1.0.6 contains a deserialization vulnerability that allows unauthenticated attackers to execute arbitrary code by injecting malicious serialized objects into cache files. Attackers can write PHP object payloads to world-writable cache files with predictable names in the cache directory, which are unserialized during framework bootstrap before authentication checks occur.

Affected

ProductAffectedFixed inSource
Pachno1.0.6–CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

writeupzeroscience.mk/en/vulnerabilities/ZSL-2026-5986.phpwriteupvulncheck.com/advisories/pachno-filecache-deserialization-remote-code-execution