What is CVE-2022-33009?

CVE-2022-33009 is a medium-severity vulnerability in Lightcms Project, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-06-27.

How severe is CVE-2022-33009?

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

XSS in Lightcms Project

CVE-2022-33009

A stored cross-site scripting (XSS) vulnerability in LightCMS v1.3.11 allows attackers to execute arbitrary web scripts or HTML via uploading a crafted PDF file.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-06-27 · last modified 2026-07-09.

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 (42.0th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.0% 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

Lightcms Project — versions 1.3.11

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

af854a3a-2127-422b-91ae-364da2661108 (Product)
github.com/eddy8/LightCMS (Third Party Advisory)
github.com/eddy8/LightCMS/issues/30 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2022-33009?: CVE-2022-33009 is a medium-severity vulnerability in Lightcms Project, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-06-27.
How severe is CVE-2022-33009?: Medium severity. CVSS v3 base score is 4.8 out of 10.