What is CVE-2020-15183?

CVE-2020-15183 is a high-severity vulnerability in Inunosinsi Soycms, classified under Cross-site Scripting. CVSS score: 8.4/10. Published 2020-09-17.

How severe is CVE-2020-15183?

High severity. CVSS v3 base score is 8.4 out of 10.

XSS in Inunosinsi Soycms

CVE-2020-15183

SoyCMS 3.0.2 and earlier is affected by Reflected Cross-Site Scripting (XSS) which leads to Remote Code Execution (RCE) from a known vulnerability. This allows remote attackers to force the administrator to edit files once the adminsitrator loads a specially crafted webpage.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-09-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.017 (77.0th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Inunosinsi Soycms — versions <= 3.0.2
Soycms Project

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/inunosinsi/soycms/security/advisories/GHSA-33q6-4xmp-2f48 (Third Party Advisory)
github.com/inunosinsi/soycms/commit/045a222016f99b56557b0d8f39bbfc653d2c4707 (Patch, Third Party Advisory)
youtu.be/uAMAwH35ups (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-15183?: CVE-2020-15183 is a high-severity vulnerability in Inunosinsi Soycms, classified under Cross-site Scripting. CVSS score: 8.4/10. Published 2020-09-17.
How severe is CVE-2020-15183?: High severity. CVSS v3 base score is 8.4 out of 10.