CVE-2021-3355

Public Exploit

Description

A stored-self XSS exists in LightCMS v1.3.4, allowing an attacker to execute HTML or JavaScript code in a vulnerable Title field to /admin/SensitiveWords.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.21%
Third-Party Advisory packetstormsecurity.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory exploit-db.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/eddy8/LightCMS/issues/18 issue tracking exploit third party advisory
http://packetstormsecurity.com/files/161562/LightCMS-1.3.4-Cross-Site-Scripting.html exploit vdb entry third party advisory
https://gist.github.com/Peithon/1c628ded0c4fc96c6331c3cce1d0c69b third party advisory exploit
https://www.exploit-db.com/exploits/49598 exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-3355?
CVE-2021-3355 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3355?
To fix CVE-2021-3355, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3355 being actively exploited in the wild?
It is possible that CVE-2021-3355 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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