What is CVE-2013-1666?

CVE-2013-1666 is a critical-severity vulnerability in Foswiki, classified under Code Injection. CVSS score: 9.8/10. Published 2019-11-01.

How severe is CVE-2013-1666?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Foswiki

CVE-2013-1666

Foswiki before 1.1.8 contains a code injection vulnerability in the MAKETEXT macro.

Vulnerability class: RCE (Remote Code Execution)

Published 2019-11-01 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.023 (82.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

Foswiki

Weakness classification (CWE)

CWE-94 — Code Injection

References

security-tracker.debian.org/tracker/CVE-2013-1666 (Third Party Advisory)
www.openwall.com/lists/oss-security/2015/03/24/20 (Mailing List, Third Party Advisory)
foswiki.org/Support/SecurityAlert-CVE-2013-1666 (Vendor Advisory)
www.securityfocus.com/archive/1/525733 (VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2013-1666?: CVE-2013-1666 is a critical-severity vulnerability in Foswiki, classified under Code Injection. CVSS score: 9.8/10. Published 2019-11-01.
How severe is CVE-2013-1666?: Critical severity. CVSS v3 base score is 9.8 out of 10.