CSRF in Eyoucms

CVE-2020-20642

Cross Site Request Forgery (CSRF) vulnerability exists in EyouCMS 1.3.6 that can add an htm page to execute the js code via login.php?m=admin&c=Filemanager&a=newfile&lang=cn.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (45.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-20642: held from 0.006 to 0.006.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-20642?
CVE-2020-20642 is a high-severity vulnerability in Eyoucms, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-08-19.
How severe is CVE-2020-20642?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2020-20642 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.