CSRF in Mantisbt

CVE-2017-7620

MantisBT before 1.3.11, 2.x before 2.3.3, and 2.4.x before 2.4.1 omits a backslash check in string_api.php and consequently has conflicting interpretations of an initial \/ substring as introducing either a local pathname or a remote hostname, which leads to (1) arbitrary Permalink Injection via CSRF attacks on a permalink_page.php?url= URI and (2) an open redirect via a login_page.php?return= URI.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.014 (70.6th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2017-7620: held from 0.014 to 0.014.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

  • Mantisbt — versions 2.0.0, 2.0.1, 2.1.0

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2017-7620?
CVE-2017-7620 is a medium-severity vulnerability in Mantisbt, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2017-05-21.
How severe is CVE-2017-7620?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2017-7620 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.