What is CVE-2020-16192?

CVE-2020-16192 is a medium-severity vulnerability in Limesurvey, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-08-05.

How severe is CVE-2020-16192?

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

XSS in Limesurvey

CVE-2020-16192

LimeSurvey 4.3.2 allows reflected XSS because application/controllers/LSBaseController.php lacks code to validate parameters.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-08-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (49.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.8% 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

Limesurvey — versions 4.3.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/LimeSurvey/LimeSurvey/pull/1479/commits/4109a8d157e46c48ca34b995ef61… (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2020-16192?: CVE-2020-16192 is a medium-severity vulnerability in Limesurvey, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-08-05.
How severe is CVE-2020-16192?: Medium severity. CVSS v3 base score is 6.1 out of 10.