Vulnerability · Published Aug 17, 2021 · Assigned by mitre
CVE-2021-39250
Medium 5.4
In plain English
A medium-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities).
Severity (CVSS NVD)5.4Medium
Exploit odds (30 days)0.8%top 42.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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).
Affected products (as reported)
References
- https://ssd-disclosure.com/ssd-advisory-ip-board-stored-xss-to-rce-chain/ x_refsource_MISC
- https://invisioncommunity.com/release-notes/4651-r102/ x_refsource_MISC