CVE-2018-10821

Name: CVE-2018-10821
Creator: NVD / NIST
Published: 2018-06-14T16:29:00.207+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 1.01%

Last modified Jun 17, 2026

CVE-2018-10821 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Cross-site scripting (XSS) vulnerability in backend/pages/modify.php in BlackCatCMS 1.3 allows remote authenticated users with the Admin role to inject arbitrary web script or HTML via the search panel.. EPSS estimates a 1.01% chance of exploitation in the next 30 days.

Description

Cross-site scripting (XSS) vulnerability in backend/pages/modify.php in BlackCatCMS 1.3 allows remote authenticated users with the Admin role to inject arbitrary web script or HTML via the search panel.

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

1.01%

58.9th 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

References

https://github.com/BlackCatDevelopment/BlackCatCMS/commit/a817755828cd0bfd4b87b0eb5cec59ffe57d3c3ePatch, Third Party Advisory
https://github.com/BlackCatDevelopment/BlackCatCMS/issues/384Exploit, Third Party Advisory
https://github.com/BlackCatDevelopment/BlackCatCMS/commit/a817755828cd0bfd4b87b0eb5cec59ffe57d3c3ePatch, Third Party Advisory
https://github.com/BlackCatDevelopment/BlackCatCMS/issues/384Exploit, Third Party Advisory

Timeline

Published: Jun 14, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-10821?

How severe is CVE-2018-10821?

CVE-2018-10821 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 1.01% probability of exploitation in the next 30 days.

How do I fix CVE-2018-10821?

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-2018-10821?

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

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Source: NVD / NIST