What is CVE-2020-27574?

CVE-2020-27574 is a high-severity vulnerability in Maxum Rumpus, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-03-08.

How severe is CVE-2020-27574?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2020-27574 known to be exploited?

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

CSRF in Maxum Rumpus

CVE-2020-27574

Maxum Rumpus 8.2.13 and 8.2.14 is affected by cross-site request forgery (CSRF). If an authenticated user visits a malicious page, unintended actions could be performed in the web application as the authenticated user.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2021-03-08 · last modified 2026-07-09.

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: 0.008 (53.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Maxum Rumpus — versions 8.2.13, 8.2.14

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

Public proof-of-concept exploits

References

af854a3a-2127-422b-91ae-364da2661108 (Product)
tvrbk.github.io/cve/2021/03/07/rumpus.html (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-27574?: CVE-2020-27574 is a high-severity vulnerability in Maxum Rumpus, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-03-08.
How severe is CVE-2020-27574?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2020-27574 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.