CVE-2026-6159

A vulnerability has been found in code-projects Simple ChatBox up to 1.0. Affected by this vulnerability is an unknown functionality of the file /chatbox/insert.php of the component Endpoint. Such manipulation of the argument msg leads to cross site scripting. The attack may be performed from remote. The exploit has been disclosed to the public and may be used.

CVSS 4.0

2.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

CVSS 3.1

4.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 18% of CVEs (scores of 2026-10-26)

CWEs

CWE-79, CWE-94

Published

2026-04-13

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

References

• https://code-projects.org/
• https://github.com/ahmadmarz10-hub/CVEsMarz/blob/main/Stored%20Cross-Site%20Scripting%20(XSS)%20in%20Simple%20Chatbox%20PHP%20msg%20Parameter.md
• https://vuldb.com/submit/796666
• https://vuldb.com/vuln/357039
• https://vuldb.com/vuln/357039/cti

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