Vulnerability in Gougucms
CVE-2026-5248
A vulnerability has been found in gougucms 4.08.18. This affects the function reg_submit of the file gougucms-master\app\home\controller\Login.php of the component User Registration Handler. Such manipulation of the argument level leads to dynamically-determined object attributes. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. 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 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (32.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.6% 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: 0.004 · change: +0.002
Affected products
- Gougucms — versions 4.08.18
Weakness classification (CWE)
References
- vuldb.com/vuln/354429 (technical-description, vdb-entry)
- vuldb.com/vuln/354429/cti (signature, permissions-required)
- vuldb.com/submit/780589 (third-party-advisory)
- thinhneee.github.io/posts/gougu-mass-assign/ (exploit)
Frequently asked questions
- What is CVE-2026-5248?
- CVE-2026-5248 is a medium-severity vulnerability in Gougucms, classified under Improper Control of Dynamically-Managed Code Resources. CVSS score: 6.3/10. Published 2026-04-01.
- How severe is CVE-2026-5248?
- Medium severity. CVSS v3 base score is 6.3 out of 10.