CVE-2020-20781

Name: CVE-2020-20781
Creator: NVD / NIST
Published: 2021-09-29T23:15:07.273+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.49%

Last modified Jun 17, 2026

CVE-2020-20781 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. A stored cross-site scripting (XSS) vulnerability in /ucms/index.php?do=list_edit of UCMS 1.4.7 allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the title, key words, description or content text fields.. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

Description

A stored cross-site scripting (XSS) vulnerability in /ucms/index.php?do=list_edit of UCMS 1.4.7 allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the title, key words, description or content text fields.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.49%

38.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Ucms Project	Ucms	1.4.7

References

https://github.com/forget-code/ucms/issues/1Exploit, Issue Tracking, Third Party Advisory
https://github.com/forget-code/ucms/issues/1Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Sep 29, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-20781?

How severe is CVE-2020-20781?

CVE-2020-20781 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2020-20781?

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-2020-20781?

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

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Source: NVD / NIST