EUVD-2026-77038
GHSA-5332-wv38-3pxg
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Stored XSS executes in victim's browser context (S:C), requiring authenticated attacker (PR:L) and victim to view chat (UI:R); C:L/I:L reflects session theft and DOM manipulation potential.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
Lifecycle Timeline
1DescriptionCVE.org
A vulnerability was identified in quequnlong shiyi-blog 1.0.0-1.2.1. This impacts the function SysChatMsgMapper.getChatMsgList of the file blog-web/src/views/chat/index.vue of the component chat sendMsg Endpoint. Such manipulation of the argument chat_msg leads to cross site scripting. The attack may be performed from remote. The project was informed of the problem early through an issue report but has not responded yet.
AnalysisAI
Cross-site scripting in shiyi-blog 1.0.0-1.2.1 allows authenticated remote attackers to inject arbitrary JavaScript through the chat_msg argument of the chat sendMsg endpoint, with execution triggered when another user loads the chat history via SysChatMsgMapper.getChatMsgList. The vulnerability resides in the Vue.js frontend component blog-web/src/views/chat/index.vue due to improper output encoding of user-supplied chat content. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to hold at minimum a low-privileged authenticated account on the target shiyi-blog instance, as confirmed by the CVSS 4.0 PR:L metric - unauthenticated exploitation is not possible. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 5.1 (AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N) reflects a moderate-severity issue constrained by two meaningful limiting factors: the attacker must hold a valid authenticated session (PR:L) and a victim must interact with the chat view (UI:P). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch has been identified at time of analysis; the project has not responded to the Gitee issue report at https://gitee.com/quequnlong/shiyi-blog/issues/IK5RVL. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Remote code execution in Shiyi Blog up to version 1.2.1 allows authenticated remote attackers to execute arbitrary code
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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