CVE-2026-31876

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Source

https://cve.org/CVERecord?id=CVE-2026-31876

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31876.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-31876

Aliases

GHSA-jprx-2w2h-4rh5

Published

2026-03-11T18:17:08.142Z

Modified

2026-08-12T03:51:30.730554476Z

Severity

5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator

Summary

Notesnook has Stored XSS via unsanitized Twitter/X embed URL in editor (`tweetToEmbed`)

Details

Notesnook is a note-taking app focused on user privacy & ease of use. Prior to 3.3.9, a Stored Cross-Site Scripting (XSS) vulnerability existed in Notesnook's editor embed component when rendering Twitter/X embed URLs. The tweetToEmbed() function in component.tsx interpolated the user-supplied URL directly into an HTML string without escaping, which was then assigned to the srcdoc attribute of an <iframe>. This vulnerability is fixed in 3.3.9.

Database specific

{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31876.json",
    "cwe_ids": [
        "CWE-79"
    ]
}

References

Affected packages

Git / github.com/streetwriters/notesnook

Affected ranges

Type

GIT

Repo

https://github.com/streetwriters/notesnook

Events

Introduced

Fixed

2b4ec5b03bf2f48a74c0eb45dcaa3f208025c919

Fixed

9c497fd2bbd7cc303351f0d8576a3d5442c4f16c

Fixed

e87f5e5f899f45df28d7c0f33f15e9178d1fbcb7

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.3.9"
        },
        {
            "fixed": "3.3.15"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "cpe": [
        "cpe:2.3:a:streetwriters:notesnook_desktop:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:streetwriters:notesnook_mobile:*:*:*:*:*:android:*:*",
        "cpe:2.3:a:streetwriters:notesnook_mobile:*:*:*:*:*:iphone_os:*:*"
    ]
}

Affected versions

2.*

2.2.0-android

2.2.1-android

2.2.2-android

2.2.3-android

2.2.4-android

2.2.5-android

2.2.6-android

2.3.0-android

2.4.0-android

2.4.1-android

2.4.10-android

2.4.11-android

2.4.12-android

2.4.13-android

2.4.14-android

2.4.15-android

2.4.16-android

2.4.17-android

2.4.2-android

2.4.3-android

2.4.4-android

2.4.5-android

2.4.6-android

2.4.7-android

2.4.8-android

2.4.9-android

2.5.0-android

2.5.1-android

2.5.2-android

2.5.3-android

2.5.4-android

2.5.5-android

2.5.6-android

2.6.0-android

2.6.1-android

2.6.10-android

2.6.11-android

2.6.12-android

2.6.14-android

2.6.15-android

2.6.16-android

2.6.17-android

2.6.18-android

2.6.2-android

2.6.3-android

2.6.4-android

2.6.5-android

2.6.6-android

2.6.7-android

2.6.8-android

2.6.9-android

3.*

3.0.0-android

3.0.0-beta-android

3.0.1-android

3.0.1-beta-android

3.0.10-android

3.0.10-beta-android

3.0.11-android

3.0.12-android

3.0.12-beta-android

3.0.13-android

3.0.13-beta-android

3.0.14-beta-android

3.0.15-android

3.0.15-beta-android

3.0.16-android

3.0.16-beta-android

3.0.17-android

3.0.17-beta-android

3.0.18-android

3.0.2-android

3.0.2-beta-android

3.0.20-android

3.0.21-android

3.0.22-android

3.0.23-android

3.0.24-android

3.0.25-android

3.0.26-android

3.0.27-android

3.0.28-android

3.0.29-android

3.0.3-android

3.0.3-beta-android

3.0.30-android

3.0.31-android

3.0.32-android

3.0.4-android

3.0.4-beta-android

3.0.5-android

3.0.5-beta-android

3.0.6-android

3.0.6-beta-android

3.0.7-android

3.0.7-beta-android

3.0.8-android

3.0.8-beta-android

3.0.9-android

3.0.9-beta-android

3.1.0-android

3.1.0-beta.0-beta-android

3.1.0-beta.1-beta-android

3.1.0-beta.2-beta-android

3.1.0-beta.3-beta-android

3.1.1-android

3.2.0-android

3.2.0-beta.0-beta-android

3.2.0-beta.1-beta-android

3.2.0-beta.2-beta-android

3.2.0-beta.3-beta-android

3.2.0-beta.4-beta-android

3.2.1-android

3.2.10-android

3.2.11-android

3.2.12-android

3.2.2-android

3.2.3-android

3.2.4-android

3.2.5-android

3.2.7-android

3.2.8-android

3.2.9-android

3.3.0-android

3.3.1-android

3.3.10-beta.0-beta-android

3.3.10-beta.3-beta-android

3.3.10-beta.4-beta-android

3.3.10-beta.5-beta-android

3.3.10-beta.6-beta-android

3.3.13-beta.0-beta-android

3.3.13-beta.1-beta-android

3.3.14-android

3.3.15-android

3.3.16-android

3.3.19-android

3.3.2-android

3.3.3-android

3.3.4-android

3.3.5-android

3.3.9-android

v2.*

v2.2.0

v2.2.1

v2.2.2

v2.2.3

v2.2.4

v2.3.0

v2.4.0

v2.4.1

v2.4.10

v2.4.11

v2.4.2

v2.4.3

v2.4.4

v2.4.5

v2.4.6

v2.4.7

v2.4.8

v2.4.9

v2.5.0

v2.5.1

v2.5.2

v2.5.3

v2.5.4

v2.5.5

v2.5.6

v2.5.7

v2.5.8

v2.6.0

v2.6.1

v2.6.10

v2.6.11

v2.6.12

v2.6.13

v2.6.14

v2.6.15

v2.6.16

v2.6.17

v2.6.2

v2.6.3

v2.6.4

v2.6.5

v2.6.6

v2.6.7

v2.6.8

v2.6.9

v3.*

v3.0.0

v3.0.0-beta

v3.0.1

v3.0.10

v3.0.11

v3.0.12

v3.0.13

v3.0.14

v3.0.15

v3.0.16

v3.0.17

v3.0.18

v3.0.2

v3.0.20

v3.0.21

v3.0.22

v3.0.23

v3.0.24

v3.0.25

v3.0.26

v3.0.27

v3.0.28

v3.0.29

v3.0.3

v3.0.30

v3.0.31

v3.0.32

v3.0.4

v3.0.5

v3.0.6

v3.0.7

v3.0.8

v3.0.9

v3.0.9-beta

v3.1.0

v3.1.0-beta.2

v3.1.0-beta.3

v3.1.1

v3.2.0

v3.2.2

v3.2.3

v3.2.4

v3.3.1

v3.3.10

v3.3.11

v3.3.12

v3.3.13

v3.3.14

v3.3.2

v3.3.3

v3.3.4

v3.3.5

v3.3.6

v3.3.7

v3.3.8-beta.0

v3.3.8-beta.1

v3.3.9

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31876.json"