Description
An XSS vulnerability exists in modules/wysiwyg/save.php of LeptonCMS 4.5.0. This can be exploited because the only security measure used against XSS is the stripping of SCRIPT elements. A malicious actor can use HTML event handlers to run JavaScript instead of using SCRIPT elements.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- LeptonCMS 4.5.0 - Persistent Cross-Site Scripting EDB-48250 · webapps · Mar 25, 2020
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.