RCE in Bufanyun Hotgo
CVE-2026-5253
A weakness has been identified in bufanyun HotGo 1.0/2.0. Affected by this vulnerability is an unknown functionality of the file /web/src/layout/components/Header/MessageList.vue of the component editNotice Endpoint. Executing a manipulation can lead to cross site scripting. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (23.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 23.9% 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: 0.003 · change: +0.001
Affected products
- Bufanyun Hotgo — versions 1.0, 2.0
Weakness classification (CWE)
References
- vuldb.com/vuln/354443 (vdb-entry)
- vuldb.com/vuln/354443/cti (signature, permissions-required)
- vuldb.com/submit/780614 (third-party-advisory)
- github.com/CC-T-454455/Vulnerabilities/tree/master/hotgo/vulnerability-2 (exploit)
Frequently asked questions
- What is CVE-2026-5253?
- CVE-2026-5253 is a low-severity vulnerability in Bufanyun Hotgo, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-04-01.
- How severe is CVE-2026-5253?
- Low severity. CVSS v3 base score is 3.5 out of 10.