CVE-2021-39249

Invision Community (aka IPS Community Suite or IP-Board) before 4.6.5.1 allows reflected XSS because the filenames of uploaded files become predictable through a brute-force attack against the PHP mt_rand function.

CVSS v3.1

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

CVSS v2.0

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N

EPSS

0.77% chance of exploitation in the next 30 days, 53th percentile

Published

2021-08-17

Updated

2024-08-04

Proof-of-concept exploits (1)

• https://ssd-disclosure.com/ssd-advisory-ip-board-stored-xss-to-rce-chain/

References

• CVE Record
• NVD entry

Related

• CVE-2021-39246
• CVE-2021-39250
• CVE-2021-39245
• CVE-2021-39267
• CVE-2021-39244
• CVE-2021-39268