What is CVE-2021-35358?

CVE-2021-35358 is a medium-severity vulnerability in Dotcms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-07-09.

How severe is CVE-2021-35358?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Dotcms

CVE-2021-35358

A stored cross site scripting (XSS) vulnerability in dotAdmin/#/c/c_Images of dotCMS 21.05.1 allows authenticated attackers to execute arbitrary web scripts or HTML via a crafted payload entered into the 'Title' and 'Filename' parameters.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-07-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (40.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Dotcms — versions 21.05.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/dotCMS/core/issues/20540 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2021-35358?: CVE-2021-35358 is a medium-severity vulnerability in Dotcms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-07-09.
How severe is CVE-2021-35358?: Medium severity. CVSS v3 base score is 4.8 out of 10.