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.

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)

EPSS: 0.008 (51.3th percentile) — read the EPSS interpretation.

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.

Affected products

Bigtreecms Bigtree_cms
N/a — versions n/a

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC, 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.