CVE-2021-3355 — MEDIUM (5.4)

Vulnerability 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.

CVSS Score

5.4

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Lightcms Project	Lightcms	1.3.4

Related Weaknesses (CWE)

CWE-79

References

http://packetstormsecurity.com/files/161562/LightCMS-1.3.4-Cross-Site-Scripting.ExploitThird Party AdvisoryVDB Entry
https://gist.github.com/Peithon/1c628ded0c4fc96c6331c3cce1d0c69bExploitThird Party Advisory
https://github.com/eddy8/LightCMS/issues/18ExploitIssue TrackingThird Party Advisory
https://www.exploit-db.com/exploits/49598ExploitThird Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/161562/LightCMS-1.3.4-Cross-Site-Scripting.ExploitThird Party AdvisoryVDB Entry
https://gist.github.com/Peithon/1c628ded0c4fc96c6331c3cce1d0c69bExploitThird Party Advisory
https://github.com/eddy8/LightCMS/issues/18ExploitIssue TrackingThird Party Advisory
https://www.exploit-db.com/exploits/49598ExploitThird Party AdvisoryVDB Entry

FAQ

What is CVE-2021-3355?

CVE-2021-3355 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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.

How severe is CVE-2021-3355?

CVE-2021-3355 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-3355?

Check the references section above for vendor advisories and patch information. Affected products include: Lightcms Project Lightcms.