CVE-2026-48800

See a problem?
Please try reporting it to the source first.

Source

https://cve.org/CVERecord?id=CVE-2026-48800

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48800.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-48800

Aliases

GHSA-3x3f-3j39-pj3v

Published

2026-06-26T20:12:43.955Z

Modified

2026-08-12T16:25:30.216328Z

Severity

7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator

Summary

Notepad++: Arbitrary Code Execution via shortcuts.xml UserCommand Injection

Details

Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, the <Command> tag text content inside <UserDefinedCommands> in shortcuts.xml is read by NppXml::value(aNode) (Parameters.cpp:3658) in the feedUserCmds() function and stored in UserCommand._cmd without any validation. When the user clicks the corresponding entry in the Run menu, NppCommands.cpp:4264 creates a Command object with string2wstring(ucmd.getCmd()) and calls run(), which invokes ShellExecute (RunDlg.cpp:221) with the attacker-controlled string as the executable path. The injected command appears as a normal menu item in the Run menu, making it a viable persistence mechanism. This vulnerability is fixed in 8.9.6.1.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-78"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48800.json"
}

References

Affected packages

Git / github.com/notepad-plus-plus/notepad-plus-plus

Affected ranges

Type

GIT

Repo

https://github.com/notepad-plus-plus/notepad-plus-plus

Events

Introduced

Fixed

41dd976310db0ba551bb8a2810b60331df3a77f5

Fixed

6b3dc52a9245c6d8c6287a8d6d93a30981c05feb

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "8.9.6.1"
        }
    ],
    "cpe": "cpe:2.3:a:notepad-plus-plus:notepad\\+\\+:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

7.*

7.2.2

7.3.1

v5.*

v5.4.2

v5.4.3

v5.4.4

v5.4.5

v5.5

v5.5.1

v5.6

v5.6.1

v5.6.2

v5.6.3

v5.6.4

v5.6.5

v5.6.6

v5.6.7

v5.6.8

v5.7

v5.8

v5.8.1

v5.8.2

v5.8.3

v5.8.4

v5.8.5

v5.8.6

v5.8.7

v5.9

v5.9.1

v5.9.2

v5.9.3

v5.9.4

v5.9.5

v5.9.6

v5.9.6.1

v5.9.6.2

v5.9.7

v5.9.8

Other

v6.*

v6.1

v6.1.1

v6.1.2

v6.1.3

v6.1.4

v6.1.5

v6.1.6

v6.1.7

v6.1.8

v6.2

v6.2.1

v6.2.2

v6.2.3_-_End_of_World_Edition

v6.3

v6.3.1

v6.3.2

v6.3.3

v6.4

v6.4.1

v6.4.2

v6.4.3

v6.4.4

v6.4.5

v6.5

v6.5.1

v6.5.2

v6.5.3

v6.5.4

v6.5.5

v6.6

v6.6.1

v6.6.2

v6.6.3

v6.6.4

v6.6.6_-_Friday_the_13th_edition

v6.6.7

v6.6.8

v6.6.9

v6.7

v6.7.1

v6.7.2

v6.7.3

v6.7.4_-_Je_suis_Charlie_edition

v6.7.5

v6.7.7

v6.7.8

v6.7.8.1

v6.7.8.2

v6.7.9

v6.7.9.1

v6.7.9.2

v6.8

v6.8.1

v6.8.2

v6.8.3

v6.8.4

v6.8.5

v6.8.6

v6.8.7

v6.8.8

v6.8.9

v6.9

v6.9.1

v6.9.2

v7.*

v7.1

v7.2

v7.2.1

v7.2.2

v7.3

v7.3.1

v7.3.2

v7.3.3

v7.4

v7.4.1

v7.4.2

v7.5.1

v7.5.2

v7.5.3

v7.5.4

v7.5.5

v7.5.6

v7.5.7

v7.5.8

v7.5.9

v7.6

v7.6.1

v7.6.2

v7.6.3

v7.6.4

v7.6.5

v7.6.6

v7.7

v7.7.1

v7.8

v7.8.1

v7.8.2

v7.8.3

v7.8.4

v7.8.5

v7.8.6

v7.8.7

v7.8.8

v7.8.9

v7.9

v7.9.1

v7.9.2

v7.9.3

v7.9.4

v7.9.5

v8.*

v8.1

v8.1.1

v8.1.2

v8.1.3

v8.1.4

v8.1.5

v8.1.6

v8.1.7

v8.1.8

v8.1.9

v8.1.9.1

v8.1.9.2

v8.1.9.3

v8.2

v8.2.1

v8.3

v8.3.1

v8.3.2

v8.3.3

v8.4

v8.4.1

v8.4.2

v8.4.3

v8.4.4

v8.4.5

v8.4.6

v8.4.7

v8.4.8

v8.4.9

v8.5

v8.5.1

v8.5.2

v8.5.3

v8.5.4

v8.5.5

v8.5.6

v8.5.7

v8.5.8

v8.6

v8.6.1

v8.6.2

v8.6.3

v8.6.4

v8.6.5

v8.6.6

v8.6.7

v8.6.8

v8.6.9

v8.7

v8.7.1

v8.7.2

v8.7.3

v8.7.4

v8.7.5

v8.7.6

v8.7.7

v8.7.8

v8.7.9

v8.8

v8.8.1

v8.8.2

v8.8.3

v8.8.4

v8.8.5

v8.8.6

v8.8.7

v8.8.8

v8.8.9

v8.9

v8.9.1

v8.9.2

v8.9.3

v8.9.4

v8.9.5

v8.9.6

Database specific

vanir_signatures

[
    {
        "target": {
            "file": "PowerEditor/src/MISC/Common/Common.h"
        },
        "signature_type": "Line",
        "deprecated": false,
        "signature_version": "v1",
        "source": "https://github.com/notepad-plus-plus/notepad-plus-plus/commit/6b3dc52a9245c6d8c6287a8d6d93a30981c05feb",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "181749774991663582470146473554578815497",
                "302062722942154120375185208124651106932",
                "98650372999019360375251111752325439057",
                "166587692734691029424276735712274430161",
                "248945003677904811749860784051606117262",
                "60143463155504444613184730036767910813",
                "297085810103251681647951248593102369155"
            ]
        },
        "id": "CVE-2026-48800-60c17733"
    },
    {
        "target": {
            "file": "PowerEditor/src/WinControls/StaticDialog/RunDlg/RunDlg.cpp"
        },
        "signature_type": "Line",
        "deprecated": false,
        "signature_version": "v1",
        "source": "https://github.com/notepad-plus-plus/notepad-plus-plus/commit/6b3dc52a9245c6d8c6287a8d6d93a30981c05feb",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "221921915779621385131946717933910183460",
                "88466601233794470682984332613726237019",
                "233855574128720763237116379589860855975",
                "77838736082028174444766894787910478963",
                "334229428646160504944987239565152517410",
                "328969565235246161758957266620694167180",
                "79929896174919516706123434099940561774",
                "74271544263323431714801046355917189500",
                "211226476317830858058080390022595763559",
                "165786206552619507259787719741535092071"
            ]
        },
        "id": "CVE-2026-48800-90b056d4"
    },
    {
        "target": {
            "function": "Command::run",
            "file": "PowerEditor/src/WinControls/StaticDialog/RunDlg/RunDlg.cpp"
        },
        "signature_type": "Function",
        "deprecated": false,
        "signature_version": "v1",
        "source": "https://github.com/notepad-plus-plus/notepad-plus-plus/commit/6b3dc52a9245c6d8c6287a8d6d93a30981c05feb",
        "digest": {
            "function_hash": "287087769914373600640101795250622951829",
            "length": 1723.0
        },
        "id": "CVE-2026-48800-b329e044"
    }
]

vanir_signatures_modified

"2026-08-12T16:25:30Z"

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48800.json"