What is CVE-2018-1000513?

CVE-2018-1000513 is a medium-severity vulnerability in Limesurvey, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2018-06-26.

How severe is CVE-2018-1000513?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Limesurvey

CVE-2018-1000513

LimeSurvey version 3.0.0-beta.3+17110 contains a Cross Site Scripting (XSS) vulnerability in Boxes that can result in JS code execution against LimeSurvey admins. This vulnerability appears to have been fixed in 3.6.x.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-06-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.9th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.9% 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 3.0.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

bugs.limesurvey.org/view.php (Exploit, Patch, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2018-1000513?: CVE-2018-1000513 is a medium-severity vulnerability in Limesurvey, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2018-06-26.
How severe is CVE-2018-1000513?: Medium severity. CVSS v3 base score is 4.8 out of 10.