EUVD-2026-80664
GHSA-qwxr-xhwf-5r52
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/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
Authenticated back-office user (PR:L) exploits a missing authorization check remotely (AV:N/AC:L) to tamper with lead ownership data (I:H); no confidentiality or availability impact and no scope change.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
5DescriptionCVE.org
yshop-crm through 2.1.3 contains a missing authorization vulnerability in the CrmCluesController receiveCustomer endpoint that allows authenticated back-office users to claim sales leads without proper permission checks. Attackers can invoke the lead-claim endpoint to reassign leads from other employees to themselves by overwriting the ownerUserId field, with no access logging or quota validation to prevent bulk lead theft.
AnalysisAI
Missing authorization in yshop-crm through 2.1.3 allows any authenticated back-office user to claim and reassign sales leads belonging to other employees by invoking the CrmCluesController receiveCustomer lead-claim endpoint with a manipulated ownerUserId value. The flaw is a broken access control (CWE-862) issue that requires only a valid low-privilege staff login and no administrative role, feature toggle, or user interaction, with the practical impact limited to integrity of lead ownership data (no confidentiality or availability impact). …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated back-office user account on yshop-crm (PR:L) - any valid low-privilege staff login suffices; no admin role is needed. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine but bounded-severity issue best characterized as broken access control (CWE-862, missing authorization) rather than a critical pre-auth flaw. … 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 identified at time of analysis; no fixed version is listed in the CPE data or references, so the primary recommendation is to treat the lead-claim endpoint as unsafe until the vendor publishes a fix and to monitor https://github.com/guchengwuyue/yshop-crm and https://www.vulncheck.com/advisories/yshop-crm-through-2.1.3-missing-authorization-via-crm-lead-claim-endpoint for an updated release. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, restrict access to the CrmCluesController receiveCustomer lead-claim endpoint at the web application firewall or reverse proxy so that only trusted internal IP ranges or a narrow set of named accounts can reach it, and enable or extend logging and alerting on all lead-ownership changes in yshop-crm 2.1.3 and earlier so that any bulk reassignment is immediately visible; simultaneously open a case with the vendor to confirm whether a fixed release beyond 2.1.3 is planned. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Oracle Java SE 7 Update 6 and earlier contains multiple sandbox bypass vulnerabilities via the ClassFinder and forName m
Remote code execution in IBM Sterling B2B Integrator, Sterling Integrator, and Tivoli Common Reporting allows unauthenti
Java Runtime Environment sandbox bypass via incorrect image channel verification in 2D component allows remote unauthent
Oracle Java SE JDK/JRE 7 and 6 Update 27 and earlier allows remote code execution with complete system compromise throug
JBoss Seam 2 in Red Hat JBoss EAP 4.3.0 fails to sanitize JBoss Expression Language inputs, allowing remote attackers to
Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 update 4 and earlier, 6 up
Multiple vulnerabilities in Oracle Java 7 before Update 11 allow remote attackers to execute arbitrary code by (1) using
Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 2 and earlier, 6 Up
The WLS Security component in Oracle WebLogic Server 10.3.6.0, 12.1.2.0, 12.1.3.0, and 12.2.1.0 allows remote attackers
Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 7 and earlier allow
Remote unauthenticated attackers can execute arbitrary code on Adobe ColdFusion servers through Java deserialization fla
The ExceptionDelegator component in Apache Struts before 2.2.3.1 interprets parameter values as OGNL expressions during
Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today