RCE in Kerwincui Fastbee
CVE-2026-7677
A vulnerability was determined in kerwincui FastBee up to 1.2.1. The impacted element is the function Add of the file springboot/fastbee-admin/src/main/java/com/fastbee/web/controller/system/SysNoticeController.java of the component System…
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.000 (10.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.
Affected products
- Kerwincui Fastbee — versions 1.2.0, 1.2.1
Weakness classification (CWE)
References
- VDB-360830 | kerwincui FastBee System Notice SysNoticeController.java add cross site scripting (technical-description, vdb-entry)
- VDB-360830 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, permissions-required)
- Submit #800724 | kerwincui FastBee ≤ 1.2.1 Improper Neutralization of Alternate XSS Syntax (third-party-advisory)
- cna@vuldb.com (exploit)
Frequently asked questions
- What is CVE-2026-7677?
- CVE-2026-7677 is a low-severity vulnerability in Kerwincui Fastbee, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-05-03.
- How severe is CVE-2026-7677?
- Low severity. CVSS v3 base score is 3.5 out of 10.