XSS in Mybb

CVE-2017-8103

In MyBB before 1.8.11, the Email MyCode component allows XSS, as demonstrated by an onmouseover event.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (49.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Mybb
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (VDB Entry, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2017-8103?: CVE-2017-8103 is a medium-severity vulnerability in Mybb, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-04-24.
How severe is CVE-2017-8103?: Medium severity. CVSS v3 base score is 6.1 out of 10.