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CVE-2020-12882

23
FAUCET Score

CVE-2020-12882 describes a Cross-Site Scripting (XSS) vulnerability in Submitty versions up to 20.04.01, allowing an authenticated user (e.g., a Student) to inject malicious scripts via SVG file uploads, impacting other users like Teaching Fellows. With a CVSS score of 5.4 (Medium), this vulnerability requires user interaction and low privileges but can lead to partial confidentiality and integrity compromise. While not listed on CISA's KEV catalog, an exploit is publicly available on ExploitDB, though there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 20.04.01CPE matchmatch criteria
cpe:2.3:a:rcos:submitty:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.20%
Probability of exploitation in next 30 days
EPSS Percentile
65.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-48488 · May 19, 2020
This CVE's current EPSS score of 0.0120 is in the 95th percentile among its peer group of 15,224 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/157756/Submitty-20.04.01-Cross-Site-Scripting.html
github.com / Submitty/Submitty/issues/5266
Third Party Advisory