CSRF in Bigtreecms Bigtree Cms
CVE-2017-7881
BigTree CMS through 4.2.17 relies on a substring check for CSRF protection, which allows remote attackers to bypass this check by placing the required admin/developer/ URI within a query string in an HTTP Referer header. This was found in core/admin/modules/developer/_header.php and patched in core/inc/bigtree/admin.php on 2017-04-14.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (53.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.cdxy.me/ (Exploit, Third Party Advisory)
- github.com/bigtreecms/BigTree-CMS/commit/7761481ac40d83ac29fef42bc6b3c07c86694b… (Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2017-7881?
- CVE-2017-7881 is a high-severity vulnerability in Bigtreecms Bigtree Cms, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2017-04-15.
- How severe is CVE-2017-7881?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2017-7881 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.