RCE in Maxsite Cms
CVE-2026-7014
A flaw has been found in MaxSite CMS up to 109.3. This vulnerability affects unknown code of the component down_count Plugin. This manipulation of the argument f_file/f_prefix causes cross site scripting. The attack may be initiated remotely. The exploit has been published and may be used. Upgrading to version 109.4 is able to resolve this issue. Patch name: 8a3946bd0a54bfb72a4d57179fcd253f2c550cd7. The affected component should be upgraded. The vendor was informed early about this issue. They classify it as a "Self-XSS". They deployed a countermeasure: "Nevertheless, we consider this a violation of secure coding standards. The lack of filtering via `htmlspecialchars()` has already been fixed in the latest patch to prevent incorrect data display."
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 2.4 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (29.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Maxsite Cms — versions 109.0, 109.1, 109.2
Weakness classification (CWE)
References
- vuldb.com/vuln/359594 (technical-description, vdb-entry)
- vuldb.com/vuln/359594/cti (signature, permissions-required)
- vuldb.com/submit/796739 (third-party-advisory)
- github.com/wnaspy/CVE/blob/main/Report- Stored XSS-in-down_count-plugin-maxsite… (exploit)
- github.com/maxsite/cms/commit/8a3946bd0a54bfb72a4d57179fcd253f2c550cd7 (patch)
- github.com/maxsite/cms/releases/tag/v109 (patch)
- github.com/maxsite/cms/ (product)
Frequently asked questions
- What is CVE-2026-7014?
- CVE-2026-7014 is a low-severity vulnerability in Maxsite Cms, classified under Cross-site Scripting. CVSS score: 2.4/10. Published 2026-04-26.
- How severe is CVE-2026-7014?
- Low severity. CVSS v3 base score is 2.4 out of 10.