CVEvulnerability

CVE-2026-45119

4.6 MEDIUM Published 2026-08-18 Modified 2026-09-08 Official page ↗
Status
Deferred
Published
2026-08-18
Last modified
2026-09-08
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.6 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L
Weaknesses
CWE-352

Description

MyBB is free and open source forum software. Prior to 1.8.40, the Admin CP UTF-8 Conversion module does not validate certain requests correctly, allowing same-site attackers to alter table encoding and deny service with a specially crafted URL. The do=all control flow in admin/modules/tools/system_health.php performs ALTER TABLE operations, column rewrite phases, and fulltext index rebuilds on GET requests for the database table named by the table parameter without request verification. The uniquely identifying implementation details include GET requests without request verification. This issue is fixed in version 1.8.40.

Related

Weakness · CWE (1)

  • CWE-352 Cross-Site Request Forgery weakness

References