XSS in Invisioncommunity Invision Power Board
CVE-2021-39250
Invision Community (aka IPS Community Suite or IP-Board) before 4.6.5.1 allows stored XSS, with resultant code execution, because an uploaded file can be placed in an IFRAME element within user-generated content. For code execution, the attacker can rely on the ability of an admin to install widgets, disclosure of the admin session ID in a Referer header, and the ability of an admin to use the templating engine (e.g., Edit HTML).
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.008 (53.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Invisioncommunity Invision_power_board
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-39250?
- CVE-2021-39250 is a medium-severity vulnerability in Invisioncommunity Invision Power Board, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-08-17.
- How severe is CVE-2021-39250?
- Medium severity. CVSS v3 base score is 5.4 out of 10.