What is CVE-2020-18145?

CVE-2020-18145 is a medium-severity vulnerability in Baidu Umeditor, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-07-14.

How severe is CVE-2020-18145?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Baidu Umeditor

CVE-2020-18145

Cross Site Scripting (XSS) vulnerability in umeditor v1.2.3 via /public/common/umeditor/php/getcontent.php.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-07-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Baidu Umeditor — versions 1.2.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/fex-team/umeditor/issues/624 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-18145?: CVE-2020-18145 is a medium-severity vulnerability in Baidu Umeditor, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-07-14.
How severe is CVE-2020-18145?: Medium severity. CVSS v3 base score is 6.1 out of 10.