XSS in Zenar Content Management System
CVE-2018-25331
Zenar Content Management System contains a cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by manipulating form parameters in POST requests. Attackers can inject script tags through the current_page parameter sent to the ajax.php endpoint, which reflects unsanitized user input in the response HTML to execute arbitrary JavaScript in victim browsers.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
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: 0.002 (10.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 10.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Zenar Content Management System — versions 7.0
Weakness classification (CWE)
References
- demo.zenar.io (product)
- www.exploit-db.com/exploits/44664 (exploit)
- www.vulncheck.com/advisories/zenar-content-management-system-cross-site-scripti… (third-party-advisory)
- zenar.io/ (product)
Frequently asked questions
- What is CVE-2018-25331?
- CVE-2018-25331 is a medium-severity vulnerability in Zenar Content Management System, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-05-17.
- How severe is CVE-2018-25331?
- Medium severity. CVSS v3 base score is 6.1 out of 10.