RCE in Dayrui Xunruicms
CVE-2026-120349
A security flaw has been discovered in dayrui XunRuiCMS up to 4.7.4. Affected by this issue is the function str_replace of the file /var/www/html/zzmob/index.php of the component Mobile Site Directory. The manipulation of the argument dirname results in code injection. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
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
- Dayrui Xunruicms — versions 4.7.0, 4.7.1, 4.7.2
Weakness classification (CWE)
References
- vuldb.com/vuln/429673 (technical-description, vdb-entry)
- vuldb.com/vuln/429673/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-120349 (third-party-advisory)
- vuldb.com/submit/1016299 (third-party-advisory)
- github.com/tiranbge/disclosure-xunruicms-4.7.2/blob/master/reports/2.md (exploit)
Frequently asked questions
- What is CVE-2026-120349?
- CVE-2026-120349 is a high-severity vulnerability in Dayrui Xunruicms, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.3/10. Published 2026-11-02.
- How severe is CVE-2026-120349?
- High severity. CVSS v3 base score is 7.3 out of 10.