Improper input validation in Mybb

CVE-2024-23335

MyBB is a free and open source forum software. The backup management module of the Admin CP may accept `.htaccess` as the name of the backup file to be deleted, which may expose the stored backup files over HTTP on Apache servers. MyBB 1.8.38 resolves this issue. Users are advised to upgrade. There are no known workarounds for this vulnerability

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.006 (43.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.

Affected products

  • Mybb — versions < 1.8.38

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-23335?
CVE-2024-23335 is a medium-severity vulnerability in Mybb, classified under Improper Input Validation. CVSS score: 4.7/10. Published 2024-05-01.
How severe is CVE-2024-23335?
Medium severity. CVSS v3 base score is 4.7 out of 10.
Is CVE-2024-23335 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.