Pachno 1.0.6 Authentication Bypass via runSwitchUser()_CVE-2026-40043

7.1 / 10

HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Description

Pachno 1.0.6 contains an authentication bypass vulnerability in the runSwitchUser() action that allows authenticated low-privilege users to escalate privileges by manipulating the original_username cookie. Attackers can set the client-controlled original_username cookie to any value and request a switch to user ID 1 to obtain session tokens or password hashes belonging to administrator accounts.

Basic Information

ID CVE-2026-40043

Source VulnCheck

Published Apr 13, 2026 at 18:11

Affected Product

Vendor pancho

Product Pachno

Version 1.0.6

Affected Versions pancho Pachno 1.0.6

CWE Classification

CWE-639

References

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    "lastseen": "",
    "description": "Pachno 1.0.6 contains an authentication bypass vulnerability in the runSwitchUser() action that allows authenticated low-privilege users to escalate privileges by manipulating the original_username cookie. Attackers can set the client-controlled original_username cookie to any value and request a switch to user ID 1 to obtain session tokens or password hashes belonging to administrator accounts.",
    "published": "2026-04-13T18:11:00.288Z",
    "modified": "2026-04-13T18:11:00.288Z",
    "type": "cve",
    "title": "Pachno 1.0.6 Authentication Bypass via runSwitchUser()",
    "source": "VulnCheck",
    "references": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2026-5985.php\nhttps://www.vulncheck.com/advisories/pachno-authentication-bypass-via-runswitchuser",
    "id": "CVE-2026-40043",
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    "sourceData": "pancho Pachno 1.0.6",
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    "cvss": {
        "score": 7.1,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
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    "cvss3": {
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        "baseSeverity": "",
        "attackVector": "",
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        "privilegesRequired": "",
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        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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    "href": "",
    "category_name": "CVE",
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    "product": "Pachno",
    "version": "1.0.6",
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