How severe is CVE-2020-12882?

CVE-2020-12882 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-12882 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12882?

CVE-2020-12882 affects Rcos Submitty. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-12882?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-12882 published?

CVE-2020-12882 was published on 2020-05-15 and last updated on 2026-06-17.

CVE-2020-12882

CVE-2020-12882 is a medium-severity vulnerability in Rcos Submitty with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Rcos Submitty
Published: 2020-05-15
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2020-12882?: CVE-2020-12882 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-12882 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12882?: CVE-2020-12882 affects Rcos Submitty. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-12882?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-12882 published?: CVE-2020-12882 was published on 2020-05-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:rcos:submitty:*:*:*:*:*:*:*:*

More vulnerabilities in Rcos Submitty

CVE-2023-43193 — Medium (CVSS 6.1): Submitty before v22.06.00 is vulnerable to Cross Site Scripting (XSS). An attacker can create a malicious link in the…
CVE-2020-13121 — Medium (CVSS 6.1): Submitty through 20.04.01 has an open redirect via authentication/login?old= during an invalid login attempt.
CVE-2023-43194 — Medium (CVSS 5.3): Submitty before v22.06.00 is vulnerable to Incorrect Access Control. An attacker can delete any post in the forum by…

All CVEs affecting Rcos Submitty →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →