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TI-2026-22815 Aliases CVE-2026-28560GHSA-qv3m-qhpr-9vhh

wpForo Forum 2.4.14 Stored XSS via Unsafe JSON Encoding in Inline Script

Priority LOW 22CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00265 18th percentileScored 2026-11-07
Fix Fixed wpForo Forum (gVectors Team): 2.4.16

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
gVectors TeamwpForo Forum2.4 to before 2.4.162.4.16Patch availableCNA
  • wpForo Forum VendorgVectors Team Affected 2.4 to before 2.4.16 Fixed in 2.4.16 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gvectors:wpforo_forum:*:*:*:*:*:wordpress:*:*2.4.0 to before 2.4.16VulnerablegVectors Team
  • cpe:2.3:a:gvectors:wpforo_forum:*:*:*:*:*:wordpress:*:* Versions 2.4.0 to before 2.4.16 Vulnerable ·gVectors Team

Remediation

  • Fix · CNA wpForo Forum (gVectors Team) Fixed in 2.4.16

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    gVectors Team wpForo Forum 2.4.16

    8 records Highest priority Priority LOW 8 LOW

    Other records, highest priority first

    • TI-2026-22814 wpForo Forum 2.4.14 Information Disclosure via Global RSS FeedPriority LOW 37
    • TI-2026-22812 wpForo Forum < 2.4.16 Privilege Escalation via Role Synchronization HandlerPriority LOW 33
    • TI-2026-22811 wpForo Forum 2.4.14 Missing Authorization via Topic Management Form HandlersPriority LOW 24
    Show all 8 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-28560
  2. 2026-10-03 Alias added: GHSA-qv3m-qhpr-9vhh

References

Patch 1

Other 1

  • TI-2023-02108 Server-side request forgery in gVectors Team wpForo Forum CVSS 3.1HIGH 8.8
  • TI-2023-02165 wpForo Forum < 2.1.9 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
  • TI-2023-25972 WordPress wpForo plugin <= 2.2.3 - Privilege Escalation vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2018-11904 An issue was discovered in the update function in the wpForo Forum plugin before 1.5.2… CVSS 3.0CRITICAL 9.8
  • TI-2026-22817 wpForo Forum 2.4.14 SQL Injection via Topics ORDER BY Parameter CVSS 4.0HIGH 8.8
  • TI-2022-19066 WordPress wpForo Forum plugin <= 2.0.9 - Auth. Arbitrary File Upload vulnerability CVSS 3.1CRITICAL 9.9
See all 28 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences