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Vulnerability record · CVE-2020-20341 · published 1 September 2021

CVE-2020-20341: Yzmcms server-side request forgery (ssrf) vulnerability

Yzmcms · Yzmcms

YzmCMS v5.5 contains a server-side request forgery (SSRF) in the grab_image() function.

7.5 CVSS 3.1 High EPSS 1.3% · top 30.4% CWE-918 · Server-side request forgery (SSRF)
7.5CVSS 3.1 base score, v2 5.0
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

YzmCMS v5.5 contains a server-side request forgery (SSRF) in the grab_image() function.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/yzmcms/yzmcms/issues/44 ExploitIssue TrackingThird Party Advisory
https://github.com/yzmcms/yzmcms/issues/44 ExploitIssue TrackingThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2018-11554Yzmcms information exposure vulnerabilityThe forgotten-password feature in index.php/member/reset/reset_email.html in YzmCMS v3.2 through v3.7 has a Response Discrepancy Information Exposure…EPSS 1.4%9.1CVE-2022-23383Yzmcms improper authentication vulnerabilityYzmCMS v6.3 is affected by broken access control. Without login, unauthorized access to the user's personal home page can be realized. It is necessar…EPSS 1.2%8.8CVE-2020-23595Yzmcms cross-site request forgery vulnerabilityCross Site Request Forgery (CSRF) vulnerability in yzmcms version 5.6, allows remote attackers to escalate privileges and gain sensitive information …EPSS 0.53%8.8CVE-2022-23384Yzmcms cross-site request forgery vulnerabilityYzmCMS v6.3 is affected by Cross Site Request Forgery (CSRF) in /admin.addEPSS 0.54%8.8CVE-2022-23888Yzmcms cross-site request forgery vulnerabilityYzmCMS v6.3 was discovered to contain a Cross-Site Request Forgey (CSRF) via the component /yzmcms/comment/index/init.html.EPSS 0.82%8.8CVE-2020-19951Yzmcms cross-site request forgery vulnerabilityA cross-site request forgery (CSRF) in /controller/pay.class.php of YzmCMS v5.5 allows attackers to access sensitive components of the application.EPSS 0.56%8.8CVE-2018-20015Yzmcms cross-site request forgery vulnerabilityYzmCMS v5.2 has admin/role/add.html CSRF.EPSS 0.52%7.5CVE-2020-35970Yzmcms server-side request forgery (ssrf) vulnerabilityAn issue was discovered in YzmCMS 5.8. There is a SSRF vulnerability in the background collection management that allows arbitrary file read.EPSS 1.3%

Source: NIST National Vulnerability Database (record CVE-2020-20341), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.