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
Published
2026-03-09T22:42:40.014Z
Modified
2026-07-08T07:32:31.221136857Z
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 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30913.json"
}
References

Affected packages

Git / github.com/flarum/framework

Affected ranges

Type
GIT
Repo
https://github.com/flarum/framework
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
f07336e204aef7876170174865e0b04c0ee7d16d
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.8.3"
        }
    ],
    "source": "AFFECTED_FIELD"
}
Type
GIT
Repo
https://github.com/flarum/nicknames
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
4dde99729abdce8f6e2a7437c86e38735fdcca28
Database specific 
{
    "source": "REFERENCES"
}

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"