What is CVE-2023-45556?

CVE-2023-45556 is a medium-severity vulnerability in Mybb, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-11-06.

How severe is CVE-2023-45556?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Mybb

CVE-2023-45556

Cross Site Scripting vulnerability in Mybb Mybb Forums v.1.8.33 allows a local attacker to execute arbitrary code via the theme Name parameter in the theme management component.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (41.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/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 (Exploit)
cve@mitre.org (Product)
cve@mitre.org (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2023-45556?: CVE-2023-45556 is a medium-severity vulnerability in Mybb, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-11-06.
How severe is CVE-2023-45556?: Medium severity. CVSS v3 base score is 5.4 out of 10.