CVE-2021-39250
Last modified
CVE-2021-39250 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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).. EPSS estimates a 0.81% chance of exploitation in the next 30 days.
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).
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Invisioncommunity | Invision Power Board | < 4.6.5.1 |
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
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-39250?
How severe is CVE-2021-39250?
How do I fix CVE-2021-39250?
Are you affected by CVE-2021-39250?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST