Vulnerability Report

CVE-2017-8898

Title: Invisioncommunity Invision Power Board Auth Bypass

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2017-8898.

CWE Category CWE-79

Published Date May 11, 2017

Modified Date Jun 17, 2026

Exploit Status Not Found

Score 9.8 CVSS v3.0

Exploit Probability (EPSS)

1.89%

Vulnerability Summary

CVE-2017-8898: Invision Power Services (IPS) Community Suite 4.1.19.2 and earlier has stored XSS in the Announcements, allowing privilege escalation from an Invision Power Board moderator to an admin. An attack uses the announce_content parameter in an index.php?/modcp/announcements/&action=create request. This is related to the "<> Source" option.

Impacted Vendors

invisioncommunity 1

invision_power_services 1

Reference Links

http://zeroday.insecurity.zone/exploits/ipb_owned.txt https://twitter.com/insecurity/status/862154908895780864 https://twitter.com/sxcurity/status/862284967715381248 http://zeroday.insecurity.zone/exploits/ipb_owned.txt https://twitter.com/insecurity/status/862154908895780864 https://twitter.com/sxcurity/status/862284967715381248

CVSS v3.0

Source Entity [email protected]

Severity CRITICAL

9.8

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

Source Entity [email protected]

Severity HIGH

7.5

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns