What is CVE-2018-15312?

CVE-2018-15312 is a medium-severity vulnerability in F5 Big-Ip Access Policy Manager, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-10-19.

How severe is CVE-2018-15312?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in F5 Big-Ip Access Policy Manager

CVE-2018-15312

On F5 BIG-IP 13.0.0-13.1.1.1 and 12.1.0-12.1.3.6, a reflected Cross-Site Scripting (XSS) vulnerability exists in an undisclosed page of the BIG-IP Configuration utility that allows an authenticated user to execute JavaScript for the currently logged-in user.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-10-19 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.009 (59.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.securitytracker.com/id/1041932 (VDB Entry, Third Party Advisory, vdb-entry)
support.f5.com/csp/article/K44462254 (Vendor Advisory)

Frequently asked questions

What is CVE-2018-15312?: CVE-2018-15312 is a medium-severity vulnerability in F5 Big-Ip Access Policy Manager, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-10-19.
How severe is CVE-2018-15312?: Medium severity. CVSS v3 base score is 6.1 out of 10.