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.
Does this matter?
Lower severity and a low EPSS score (0.81%). Track it; it rarely justifies an emergency change on its own.
Description
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).
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.81% probability · 55th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- invisioncommunity/invision power board
- Source
- cve@mitre.org
References
- https://invisioncommunity.com/release-notes/4651-r102/Release Notes, Vendor Advisory
- https://ssd-disclosure.com/ssd-advisory-ip-board-stored-xss-to-rce-chain/Exploit, Third Party Advisory
- https://invisioncommunity.com/release-notes/4651-r102/Release Notes, Vendor Advisory
- https://ssd-disclosure.com/ssd-advisory-ip-board-stored-xss-to-rce-chain/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.