Read the docs
TI-2021-22519 Aliases CVE-2021-47905GHSA-wj7p-g6rj-6gf9

MyBB Delete Account Plugin 1.4 - Cross-Site Scripting

Priority MEDIUM 56CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

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

Summary

MyBB Delete Account Plugin 1.4 contains a cross-site scripting vulnerability in the account deletion reason input field. Attackers can inject malicious scripts that will execute in the admin interface when viewing delete account reasons.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00247 16th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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
vintagedaddyoMyBB Delete Account Plugin1.4—No fix listedCNA
  • MyBB Delete Account Plugin Vendorvintagedaddyo Affected 1.4 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mybb:delete_account:1.4:*:*:*:*:mybb:*:*1.4Vulnerablemybb
  • cpe:2.3:a:mybb:delete_account:1.4:*:*:*:*:mybb:*:* Versions 1.4 Vulnerable ·mybb

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-47905
  2. 2026-10-03 Alias added: GHSA-wj7p-g6rj-6gf9

References

Exploit 1

Other 1

Sources

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