CVE-2020-26642

Name: CVE-2020-26642
Creator: NVD / NIST
Published: 2021-05-28T20:15:07.537+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.66%

Last modified Jun 17, 2026

CVE-2020-26642 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A cross-site scripting (XSS) vulnerability has been discovered in the login page of SeaCMS version 11 which allows an attacker to inject arbitrary web script or HTML.. EPSS estimates a 0.66% chance of exploitation in the next 30 days.

Description

A cross-site scripting (XSS) vulnerability has been discovered in the login page of SeaCMS version 11 which allows an attacker to inject arbitrary web script or HTML.

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

0.66%

46.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Seacms	Seacms	11.0

References

https://www.chinapyg.com/thread-137805-1-1.htmlExploit, Third Party Advisory
https://www.chinapyg.com/thread-137805-1-1.htmlExploit, Third Party Advisory

Timeline

Published: May 28, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-26642?

A cross-site scripting (XSS) vulnerability has been discovered in the login page of SeaCMS version 11 which allows an attacker to inject arbitrary web script or HTML.

How severe is CVE-2020-26642?

CVE-2020-26642 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.66% probability of exploitation in the next 30 days.

How do I fix CVE-2020-26642?

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-2020-26642?

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

Scan your code now

Source: NVD / NIST