What is CVE-2019-16187?

CVE-2019-16187 is a high-severity vulnerability in Limesurvey, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.5/10. Published 2019-09-09.

How severe is CVE-2019-16187?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Limesurvey

CVE-2019-16187

Limesurvey before 3.17.14 uses an anti-CSRF cookie without the HttpOnly flag, which allows attackers to access a cookie value via a client-side script.

Published 2019-09-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.014 (71.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Limesurvey

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

www.limesurvey.org/limesurvey-updates/2188-limesurvey-3-17-14-build-190902-rele… (Release Notes, Vendor Advisory)
github.com/LimeSurvey/LimeSurvey/commit/5870fd1037058bc4e43cccf893b576c72293371e (Patch, Third Party Advisory, Release Notes)

Frequently asked questions

What is CVE-2019-16187?: CVE-2019-16187 is a high-severity vulnerability in Limesurvey, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.5/10. Published 2019-09-09.
How severe is CVE-2019-16187?: High severity. CVSS v3 base score is 7.5 out of 10.