CVE-2021-39250

5.4 MEDIUM

Invision Community (aka IPS Community Suite or IP-Board) before 4.6.5.1 allows stored XSS, with resultant code execution, because an uplo...

Published: 2021-08-17 · Last updated: 2026-06-17

Severity and scoring

CVSS: 5.4 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE: CWE-79

Affected products

Vendor	Product
invisioncommunity	invision_power_board

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).

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-39250
[Vendor advisory]https://invisioncommunity.com/release-notes/4651-r102/
[Exploit reference]https://ssd-disclosure.com/ssd-advisory-ip-board-stored-xss-to-rce-chain/
[Vendor advisory]https://invisioncommunity.com/release-notes/4651-r102/
[Exploit reference]https://ssd-disclosure.com/ssd-advisory-ip-board-stored-xss-to-rce-chain/

Related CVEs

Same vendor

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 beco... (6.1 MEDIUM)
CVE-2021-3025 — Invision Community IPS Community Suite before 4.5.4.2 allows SQL Injection via the Downloads REST API (the sortDir parameter in a sortBy=... (8.8 HIGH)
CVE-2021-3026 — Invision Community IPS Community Suite before 4.5.4.2 allows XSS during the quoting of a post or comment (6.1 MEDIUM)

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