PoC Index

CVE-2021-23836

MEDIUM 4.8EPSS 0.9%

An issue was discovered in flatCore before 2.0.0 build 139. A stored XSS vulnerability was identified in the prefs_smtp_psw HTTP request body parameter for the acp interface. An admin user can inject malicious client-side script into the affected parameter without any form of input sanitization. The injected payload will be executed in the browser of a user whenever one visits the affected module page.

CVSS v3.1
4.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
CVSS v2.0
3.5 LOWAV:N/AC:M/Au:S/C:N/I:P/A:N
EPSS
0.92% chance of exploitation in the next 30 days, 58th percentile
Published
2021-01-15
Updated
2024-08-03

Proof-of-concept exploits (1)

References

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