What is CVE-2018-13065?

CVE-2018-13065 is a medium-severity vulnerability in Owasp Modsecurity, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-07-03.

How severe is CVE-2018-13065?

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

XSS in Owasp Modsecurity

CVE-2018-13065

ModSecurity 3.0.0 has XSS via an onerror attribute of an IMG element. NOTE: a third party has disputed this issue because it may only apply to environments without a Core Rule Set configured

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-07-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.014 (71.1th percentile), scored 2026-10-19.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.1% 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

Owasp Modsecurity — versions 3.0.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/SpiderLabs/ModSecurity/issues/1829 (Third Party Advisory)
hackings8n.blogspot.com/2018/07/cve-2018-13065-modsecurity-300-has-xss.html (Third Party Advisory)
www.exploit-db.com/exploits/44970/ (exploit, Broken Link)

Frequently asked questions

What is CVE-2018-13065?: CVE-2018-13065 is a medium-severity vulnerability in Owasp Modsecurity, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-07-03.
How severe is CVE-2018-13065?: Medium severity. CVSS v3 base score is 6.1 out of 10.