XSS in Mybb

CVE-2018-6844

MyBB 1.8.14 has XSS via the Title or Description field on the Edit Forum screen.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (46.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2018-6844: held from 0.006 to 0.006.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

  • Mybb — versions 1.8.14

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-6844?
CVE-2018-6844 is a medium-severity vulnerability in Mybb, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-02-08.
How severe is CVE-2018-6844?
Medium severity. CVSS v3 base score is 5.4 out of 10.