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CVE-2026-30913

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

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
flarum / nicknamesaffected < 1.8.3

CWE

CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.