CVE-2026-28561 | THREATINT

Description

wpForo Forum 2.4.14 contains a stored cross-site scripting vulnerability that allows administrators to inject persistent JavaScript via forum description fields echoed without output escaping across multiple theme template files. On multisite installations or with a compromised admin account, attackers set a forum description containing HTML event handlers that execute when any user views the forum listing.

PUBLISHED Reserved 2026-02-28 | Published 2026-02-28 | Updated 2026-02-28 | Assigner VulnCheck

MEDIUM: 4.8CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

MEDIUM: 5.5CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Problem types

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status

unaffected

2.4 (semver) before 2.4.16

affected

2.4.16 (semver)

unaffected

Credits

Scott Moore - VulnCheck finder

References

wordpress.org/plugins/wpforo/ (wpForo Forum WordPress Plugin) product

wordpress.org/plugins/wpforo/ (wpForo Forum Contributors & Developers) patch

www.vulncheck.com/...nescaped-forum-description-in-templates (VulnCheck Advisory: wpForo Forum 2.4.14 Stored XSS via Unescaped Forum Description in Templates) third-party-advisory

cve.org (CVE-2026-28561)

nvd.nist.gov (CVE-2026-28561)

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