XSS in Flatcore
CVE-2020-17451
flatCore before 1.5.7 allows XSS by an admin via the acp/acp.php?tn=pages&sub=edit&editpage=1 page_linkname, page_title, page_content, or page_extracontent parameter, or the acp/acp.php?tn=system&sub=sys_pref prefs_pagename, prefs_pagetitle, or prefs_pagesubtitle parameter.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.006 (47.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
Weakness classification (CWE)
References
- lists.openwall.net/full-disclosure/2020/08/07/1 (Exploit, Mailing List, Third Party Advisory)
- sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-flatcore-cms/ (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-17451?
- CVE-2020-17451 is a medium-severity vulnerability in Flatcore, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2020-08-09.
- How severe is CVE-2020-17451?
- Medium severity. CVSS v3 base score is 4.8 out of 10.