CVE-2026-43887

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Source

https://cve.org/CVERecord?id=CVE-2026-43887

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43887.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-43887

Aliases

GHSA-rqrg-f3qc-xvgh

Published

2026-05-11T21:05:42.302Z

Modified

2026-07-15T01:49:16.542755344Z

Severity

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

Summary

Outline: Stored XSS via Comment Mentions

Details

Outline is a service that allows for collaborative documentation. From 0.84.0 to 1.6.1, the Outline comment section permits users to mention other users; however, the backend does not validate or sanitize the href attribute associated with these mentions. As a result, potentially dangerous protocols (e.g., javascript:) are not filtered, introducing a risk of client-side code execution. This vulnerability is fixed in 1.7.0.

Database specific

{
    "cwe_ids": [
        "CWE-79"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43887.json"
}

References

Affected packages

Git / github.com/outline/outline

Affected ranges

Type

GIT

Repo

https://github.com/outline/outline

Events

Introduced

8ab0c6ff484f02b5d97e130b20376a17dd4546cc

Fixed

568b4ac074c67c5c58c75637c3a60b41f5bb1e6b

Database specific

{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0.84.0"
        },
        {
            "fixed": "1.7.0"
        }
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43887.json"