CVE-2026-28558 | THREATINT

Description

wpForo Forum 2.4.14 contains a stored cross-site scripting vulnerability that allows authenticated subscribers to upload SVG files as profile avatars through the avatar upload functionality. Attackers upload a crafted SVG containing CSS injection or JavaScript event handlers that execute in the browsers of any user who views the attacker's profile page.

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

MEDIUM: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

MEDIUM: 6.4CVSS:3.1/AV:N/AC:L/PR:L/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/...m-stored-xss-via-svg-avatar-file-upload (VulnCheck Advisory: wpForo Forum 2.4.14 Stored XSS via SVG Avatar File Upload) third-party-advisory

cve.org (CVE-2026-28558)

nvd.nist.gov (CVE-2026-28558)

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