CVE-2019-20803

Name: CVE-2019-20803
Creator: NVD / NIST
Published: 2020-05-21T22:15:09.957+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.81%

Last modified Jun 17, 2026

CVE-2019-20803 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Gila CMS before 1.11.6 has reflected XSS via the admin/content/postcategory id parameter, which is mishandled for g_preview_theme.. EPSS estimates a 1.81% chance of exploitation in the next 30 days.

Description

Gila CMS before 1.11.6 has reflected XSS via the admin/content/postcategory id parameter, which is mishandled for g_preview_theme.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

1.81%

75.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Gilacms	Gila Cms	< 1.11.6

References

http://packetstormsecurity.com/files/158201/GilaCMS-1.11.5-Cross-Site-Request-Forgery-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2020/Jun/29Exploit, Mailing List, Third Party Advisory
https://github.com/GilaCMS/gila/issues/56Exploit, Third Party Advisory
http://packetstormsecurity.com/files/158201/GilaCMS-1.11.5-Cross-Site-Request-Forgery-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2020/Jun/29Exploit, Mailing List, Third Party Advisory
https://github.com/GilaCMS/gila/issues/56Exploit, Third Party Advisory

Timeline

Published: May 21, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-20803?

Gila CMS before 1.11.6 has reflected XSS via the admin/content/postcategory id parameter, which is mishandled for g_preview_theme.

How severe is CVE-2019-20803?

CVE-2019-20803 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.81% probability of exploitation in the next 30 days.

How do I fix CVE-2019-20803?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-20803?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST