PT-2021-20197 · Lightcms · Lightcms

Peithon · Published 2021-02-24 · Updated 2021-03-04 · CVE-2021-3355

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions LightCMS version 1.3.4

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

Recommendations For LightCMS version 1.3.4, as a temporary workaround, consider restricting access to the "/admin/SensitiveWords" endpoint until a patch is available. Avoid using the vulnerable Title field in this endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-3355

Affected Products

Lightcms

References · 10

• 🔥 https://github.com/eddy8/LightCMS/issues/18 · Exploit
• 🔥 http://packetstormsecurity.com/files/161562/LightCMS-1.3.4-Cross-Site-Scripting.html · Exploit
• 🔥 https://gist.github.com/Peithon/1c628ded0c4fc96c6331c3cce1d0c69b · Exploit
• 🔥 https://exploit-db.com/exploits/49598 · Exploit
• https://osv.dev/vulnerability/CVE-2021-3355 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-3355 · Security Note
• https://t.me/cvenotify/10619 · Telegram Post
• https://t.me/cvenotify/10434 · Telegram Post
• https://t.me/cibsecurity/24080 · Telegram Post
• https://t.me/cvenotify/10667 · Telegram Post