CVE-2026-92459: Auth Bypass (CVSS 6.5)

Description

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.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS — Exploit Prediction

0.0043

Probability of exploitation

0.36%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-862 Missing Authorization

References

Other References

https://github.com/LinYuanyi1/cve-request-poc/blob/master/yshop-crm/C06_crm_clues_receive.py https://github.com/guchengwuyue/yshop-crm https://github.com/guchengwuyue/yshop-crm/blob/5f5810a0e1e4ab0828523ec299bf973c2f9065d7/yshop-crm/pom.xml#L30 https://github.com/guchengwuyue/yshop-crm/blob/5f5810a0e1e4ab0828523ec299bf973c2f9065d7/yshop-crm/yshop-module-crm/yshop-module-crm-biz/src/main/java/co/yixiang/yshop/module/crm/controller/admin/crmclues/CrmCluesController.java#L80 https://github.com/guchengwuyue/yshop-crm/blob/5f5810a0e1e4ab0828523ec299bf973c2f9065d7/yshop-crm/yshop-module-crm/yshop-module-crm-biz/src/main/java/co/yixiang/yshop/module/crm/service/crmclues/CrmCluesServiceImpl.java#L113 https://www.vulncheck.com/advisories/yshop-crm-through-2.1.3-missing-authorization-via-crm-lead-claim-endpoint

Frequently Asked Questions

What is CVE-2026-92459? +

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. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-92459? +

CVE-2026-92459 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0043, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-92459? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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