XSS in Invisioncommunity Invision Power Board
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.019 (78.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 78.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
Weakness classification (CWE)
References
- zeroday.insecurity.zone/exploits/ipb_owned.txt (Exploit, Third Party Advisory)
- twitter.com/insecurity/status/862154908895780864 (Exploit, Third Party Advisory)
- twitter.com/sxcurity/status/862284967715381248 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-8898?
- CVE-2017-8898 is a critical-severity vulnerability in Invisioncommunity Invision Power Board, classified under Cross-site Scripting. CVSS score: 9.8/10. Published 2017-05-11.
- How severe is CVE-2017-8898?
- Critical severity. CVSS v3 base score is 9.8 out of 10.