CVE-2026-28560
Plain English Summary
AI-powered analysis for quick understanding
This vulnerability allows an attacker to inject malicious scripts that can run in the browsers of all visitors to a wpForo forum. It occurs when an attacker manipulates the forum's URL by including certain characters, which lets them break out of the intended code and execute their own scripts.
Technical Description
wpForo Forum 2.4.14 contains a stored cross-site scripting vulnerability that allows script injection via forum URL data output into an inline script block using json_encode without the JSON_HEX_TAG flag. Attackers set a forum slug containing a closing script tag or unescaped single quote to break out of the JavaScript string context and execute arbitrary script in all visitors' browsers.
CVSS Vector Analysis
Vector String
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XExploit Resources
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Official References
Quick Information
Published
Feb 28, 2026
about 1 month ago
Last Modified
Mar 4, 2026
about 1 month ago
Vendor
gvectors
Product
wpforo forum
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