What is CVE-2020-19048?

CVE-2020-19048 is a medium-severity vulnerability in Mybb, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-08-31.

How severe is CVE-2020-19048?

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

XSS in Mybb

CVE-2020-19048

Cross Site Scripting (XSS) in MyBB v1.8.20 allows remote attackers to inject arbitrary web script or HTML via the "Title" field found in the "Add New Forum" page by doing an authenticated POST HTTP request to '/Upload/admin/index.php?module=forum-management&action=add'.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (50.0th 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 — versions 1.8.20
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-19048?: CVE-2020-19048 is a medium-severity vulnerability in Mybb, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-08-31.
How severe is CVE-2020-19048?: Medium severity. CVSS v3 base score is 5.4 out of 10.