CVE-2020-12882 json
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.
published 2020-05-15 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-5163
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 1
- Exploit-DB
Summary
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.
Timeline
- Published
- First public exploit (EDB-48488)
Exploit prediction
1.20% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-48488 Submitty 20.04.01 - Persistent Cross-Site Scripting webapps, 2020-05-19
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
Sources
- CVE List CVE-2020-12882
- NVD CVE-2020-12882
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.