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.
Published: 2026-02-28
Score: 4.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Cross‑Site Scripting (client‑side code execution)
Action: Immediate Patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 06 Mar 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 04 Mar 2026 03:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:gvectors:wpforo_forum:*:*:*:*:*:wordpress:*:*

Mon, 02 Mar 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Wordpress
Wordpress wordpress
Vendors & Products Wordpress
Wordpress wordpress

Sat, 28 Feb 2026 22:00:00 +0000

Type Values Removed Values Added
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.
Title wpForo Forum 2.4.14 Stored XSS via Unsafe JSON Encoding in Inline Script
First Time appeared Gvectors
Gvectors wpforo Forum
Weaknesses CWE-79
CPEs cpe:2.3:a:gvectors:wpforo_forum:*:*:*:*:*:*:*:*
cpe:2.3:a:gvectors:wpforo_forum:2.4.16:*:*:*:*:*:*:*
Vendors & Products Gvectors
Gvectors wpforo Forum
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 4.8, 'vector': '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'}


Subscriptions

Gvectors Wpforo Forum
Wordpress Wordpress
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-11T23:11:40.505Z

Reserved: 2026-02-28T18:54:23.281Z

Link: CVE-2026-28560

cve-icon Vulnrichment

Updated: 2026-03-06T15:12:38.422Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-28T22:16:03.137

Modified: 2026-03-04T02:47:02.857

Link: CVE-2026-28560

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-16T15:15:39Z

Weaknesses