XSS in E107inc E107
CVE-2026-114407
e107 CMS before 2.3.13 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious HTML by manipulating the author GET parameter in search.php, which is parsed with parse_str() and concatenated unescaped into a rendered input tag via the form handler's 'other' option key. Attackers can craft a single GET request containing a crafted author parameter to break out of the HTML input tag and inject an img element with an onerror handler, executing arbitrary JavaScript in the victim's browser session.
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
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/e107inc/e107/security/advisories/GHSA-g7rc-4jvq-27m9 (vendor-advisory, technical-description)
- github.com/e107inc/e107/releases/tag/v2.3.13 (issue-tracking, patch)
- www.vulncheck.com/advisories/e107-cms-before-reflected-xss-via-search-php-autho… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-114407?
- CVE-2026-114407 is a medium-severity vulnerability in E107inc E107, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-10-21.
- How severe is CVE-2026-114407?
- Medium severity. CVSS v3 base score is 6.1 out of 10.