What is CVE-2013-5594?

CVE-2013-5594 is a medium-severity vulnerability in Mozilla Firefox, classified under Improper Restriction of Rendered UI Layers or Frames (Clickjacking). CVSS score: 4.3/10. Published 2020-02-18.

How severe is CVE-2013-5594?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Mozilla Firefox

CVE-2013-5594

Mozilla Firefox before 25 allows modification of anonymous content of pluginProblem.xml binding

Published 2020-02-18 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (50.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.6% 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

Mozilla Firefox — versions before 2013

Weakness classification (CWE)

CWE-1021 — Improper Restriction of Rendered UI Layers or Frames (Clickjacking)

References

bugzilla.mozilla.org/show_bug.cgi (Issue Tracking, Vendor Advisory)
nki.gov.hu/en/figyelmeztetesek/serulekenysegek/mozilla-firefox-tobbszoros-serul… (Third Party Advisory)

Frequently asked questions

What is CVE-2013-5594?: CVE-2013-5594 is a medium-severity vulnerability in Mozilla Firefox, classified under Improper Restriction of Rendered UI Layers or Frames (Clickjacking). CVSS score: 4.3/10. Published 2020-02-18.
How severe is CVE-2013-5594?: Medium severity. CVSS v3 base score is 4.3 out of 10.