CVE-2021-40509

PoC —

CVSS 3.1

5.4 medium

EPSS

<1%p60

Published

Sep 4, 2021 (Sep 4, 2021)

Modified

Jun 17, 2026

Description

ViewCommon.java in JForum2 2.7.0 allows XSS via a user signature.

Vendors: jforum
Products: jforum
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (1.0%)

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