CVE-2020-25878

Name: CVE-2020-25878
Creator: NVD / NIST
Published: 2021-07-09T22:15:08.113+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.54%

Last modified Jun 17, 2026

CVE-2020-25878 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. A stored cross site scripting (XSS) vulnerability in the 'Admin-Tools' feature of BlackCat CMS 1.3.6 allows authenticated attackers to execute arbitrary web scripts or HTML via crafted payloads entered into the 'Output Filters' and 'Droplets' modules.. EPSS estimates a 0.54% chance of exploitation in the next 30 days.

Description

A stored cross site scripting (XSS) vulnerability in the 'Admin-Tools' feature of BlackCat CMS 1.3.6 allows authenticated attackers to execute arbitrary web scripts or HTML via crafted payloads entered into the 'Output Filters' and 'Droplets' modules.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

0.54%

41.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Blackcat-Cms	Blackcat Cms	1.3.6

References

https://blackcat-cms.org/Product
https://github.com/BlackCatDevelopment/BlackCatCMS/issues/402Exploit, Issue Tracking, Third Party Advisory
https://blackcat-cms.org/Product
https://github.com/BlackCatDevelopment/BlackCatCMS/issues/402Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Jul 9, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-25878?

How severe is CVE-2020-25878?

CVE-2020-25878 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.54% probability of exploitation in the next 30 days.

How do I fix CVE-2020-25878?

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-2020-25878?

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

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Source: NVD / NIST