What is CVE-2018-14724?

CVE-2018-14724 is a medium-severity vulnerability in Mybb Ban List, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-03-21.

How severe is CVE-2018-14724?

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

Is CVE-2018-14724 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Mybb Ban List

CVE-2018-14724

In the Ban List plugin 1.0 for MyBB, any forum user with mod privileges can ban users and input an XSS payload into the ban reason, which is executed on the bans.php page.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-03-21 · last modified 2026-06-17.

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: 0.007 (50.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Mybb Ban List — versions 1.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

www.exploit-db.com/exploits/46347 (Exploit, VDB Entry, Third Party Advisory, exploit)

Frequently asked questions

What is CVE-2018-14724?: CVE-2018-14724 is a medium-severity vulnerability in Mybb Ban List, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-03-21.
How severe is CVE-2018-14724?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2018-14724 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.