CVE-2026-27891

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Source
https://cve.org/CVERecord?id=CVE-2026-27891
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27891.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-27891
Aliases
Published
2026-05-18T21:16:15.240Z
Modified
2026-07-08T08:12:45.113744144Z
Severity
  • 7.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Remote Code Execution (RCE) via Zip Slip in Plugin Upload Mechanism
Details

FacturaScripts is an open source accounting and invoicing software. Versions 2026 and below contain a critical vulnerability in the Plugins::add() function. The system fails to properly validate the file paths within uploaded ZIP archives. This allows an attacker to perform a Zip Slip attack, leading to Arbitrary File Write and Remote Code Execution (RCE) by overwriting sensitive .php files outside the designated plugins directory. The vulnerability is located in Plugins.php. While the testZipFile function attempts to validate that the ZIP contains only one root folder, it does not sanitize or validate the individual file paths within that folder. An attacker can bypass this check by naming a file ValidPluginName/../../shell.php. The explode function will see ValidPluginName as the root folder, satisfying the count($folders) != 1 check. However, during extraction, the ../../ sequence triggers a path traversal, allowing the file to be written anywhere the web server has permissions the root directory. This issue is fixed in version 2026.1.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27891.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-20",
        "CWE-434"
    ]
}
References

Affected packages

Git / github.com/neorazorx/facturascripts

Affected ranges

Type
GIT
Repo
https://github.com/neorazorx/facturascripts
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
2dda7c6f3b241fa84a0629166783720b882725fd
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2026.1"
        }
    ]
}

Affected versions

2018.*
2018.03
2018.04
2018.05
2018.11
c2024.*
c2024.92
v2018.*
v2018.12
v2018.13
v2018.14
v2018.15
v2018.16
v2020.*
v2020.01
v2020.2
v2020.3
v2020.4
v2020.51
v2020.61
v2020.71
v2020.80
Other
v2021
v2024
v2025
v2021.*
v2021.1
v2021.2
v2021.4
v2021.51
v2021.71
v2021.81
v2022.*
v2022.06
v2022.08
v2022.2
v2022.4
v2022.51
v2023.*
v2023.08
v2023.16
v2023.21
v2024.*
v2024.1
v2024.2
v2024.3
v2024.5
v2024.7
v2024.8
v2024.9
v2024.91
v2025.*
v2025.11
v2025.2
v2025.3
v2025.4
v2025.41
v2025.43
v2025.7
v2025.71
v2025.8
v2025.81

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27891.json"