What is CVE-2020-21122?

CVE-2020-21122 is a medium-severity vulnerability in Ureport Project, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2021-09-15.

How severe is CVE-2020-21122?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2020-21122 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SSRF in Ureport Project

CVE-2020-21122

UReport v2.2.9 contains a Server-Side Request Forgery (SSRF) in the designer page which allows attackers to detect intranet device ports.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2021-09-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.009 (56.6th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Ureport Project — versions 2.2.9

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

Public proof-of-concept exploits

p1ay8y3ar/cve_

References

github.com/youseries/ureport/issues/483 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2020-21122?: CVE-2020-21122 is a medium-severity vulnerability in Ureport Project, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2021-09-15.
How severe is CVE-2020-21122?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2020-21122 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.