What is CVE-2020-8812?

CVE-2020-8812 is a medium-severity vulnerability in Bludit, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-02-07.

How severe is CVE-2020-8812?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Bludit

CVE-2020-8812

Bludit 3.10.0 allows Editor or Author roles to insert malicious JavaScript on the WYSIWYG editor. NOTE: the vendor's perspective is that this is "not a bug.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-02-07 · last modified 2026-06-17.

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: 0.006 (46.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 46.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Bludit — versions 3.10.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/bludit/bludit/issues/1132 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2020-8812?: CVE-2020-8812 is a medium-severity vulnerability in Bludit, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-02-07.
How severe is CVE-2020-8812?: Medium severity. CVSS v3 base score is 5.4 out of 10.