What’s Vulnerable › Vulnerabilities

CVE-2026-28558: wpForo Forum 2.4.14 Stored XSS via SVG Avatar File Upload

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-28 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• tomdever wpForo Forum: from 2.4.0 before 2.4.16 — fixed in 2.4.16

How to fix

Upgrade to a fixed version: tomdever wpForo Forum 2.4.16. Check the vendor advisory for mitigations.

References

• https://wordpress.org/plugins/wpforo/
• https://wordpress.org/plugins/wpforo/#developers
• https://www.vulncheck.com/advisories/wpforo-forum-stored-xss-via-svg-avatar-file-upload

Get alerted when CVE-2026-28558 or the next vulnerability affects your stack