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Description

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.

PUBLISHED Reserved 2026-01-18 | Published 2026-01-23 | Updated 2026-01-23 | Assigner VulnCheck




MEDIUM: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
MEDIUM: 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Problem types

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

1.4
affected

Credits

0xB9 finder

References

www.exploit-db.com/exploits/49500 exploit

www.exploit-db.com/exploits/49500 (ExploitDB-49500) exploit

github.com/vintagedaddyo/MyBB_Plugin-Delete_Account/ (MyBB Delete Account Plugin Repository) product

www.vulncheck.com/...ete-account-plugin-cross-site-scripting (VulnCheck Advisory: MyBB Delete Account Plugin 1.4 - Cross-Site Scripting) third-party-advisory

cve.org (CVE-2021-47905)

nvd.nist.gov (CVE-2021-47905)

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