XSS in Rcos Submitty

CVE-2020-12882

Submitty through 20.04.01 allows XSS via upload of an SVG document, as demonstrated by an attack by a Student against a Teaching Fellow.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.012 (67.1th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.1% 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-2020-12882: held from 0.012 to 0.012.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-12882?
CVE-2020-12882 is a medium-severity vulnerability in Rcos Submitty, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-05-15.
How severe is CVE-2020-12882?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2020-12882 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.