Is CVE-2026-30913 actively exploited?

No active exploitation of CVE-2026-30913 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-30913 be exploited remotely?

Yes. CVE-2026-30913 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-30913?

CVE-2026-30913 has a CVSS score of 4.6 (MEDIUM).

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MEDIUM

CVE-2026-30913

CWE-79Published: March 10, 2026· Updated: Mar 11, 2026

4.6

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:7.7th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-30913 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.