CVE-2026-30913

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Source

https://cve.org/CVERecord?id=CVE-2026-30913

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-30913.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-30913

Aliases

GHSA-3c4m-j3g4-hh25

Published

2026-03-09T22:42:40.014Z

Modified

2026-04-10T05:42:35.497725Z

Severity

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

Summary

flarum/nickname: Display name injection in notification emails (autolink & markdown)

Details

Flarum is open-source forum software. When the flarum/nicknames extension is enabled, a registered user can set their nickname to a string that email clients interpret as a hyperlink. The nickname is inserted verbatim into plain-text notification emails, and recipients may be misled into visiting attacker-controlled domains.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30913.json",
    "cwe_ids": [
        "CWE-79"
    ],
    "cna_assigner": "GitHub_M"
}

References

Affected packages

Git / github.com/flarum/framework

Affected ranges

Type

GIT

Repo

https://github.com/flarum/framework

Events

Introduced

Fixed

f07336e204aef7876170174865e0b04c0ee7d16d

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.8.3"
        }
    ]
}

Affected versions

v1.*

v1.3.0

v1.3.1

v1.4.0

v1.5.0

v1.6.0

v1.6.1

v1.7.0

v1.7.1

v1.8.0

v1.8.1

v1.8.2

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-30913.json"

Git / github.com/flarum/nicknames