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CVE-2017-7620

MantisBT vulnerable to CSRF and Open Redirect attacks

6.5 MediumPublic exploitFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

1.36%Down 4.0 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.5

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.

Record
CVE-2017-7620
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness
CWE-352
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2017-7620
Updated
2026-11-02
EUVDEUVD-2017-16625 No score

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.

Record
EUVD-2017-16625
Updated
2026-11-03
GitHub AdvisoriesGHSA-9x76-mp7r-2xc5 6.5

MantisBT vulnerable to CSRF and Open Redirect attacks

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.

Record
GHSA-9x76-mp7r-2xc5
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness
CWE-352
Updated
2026-11-02
OSV 6.5

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.

Record
CVE-2017-7620
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVGHSA-9x76-mp7r-2xc5 6.5

MantisBT vulnerable to CSRF and Open Redirect attacks

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.

Record
GHSA-9x76-mp7r-2xc5
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness
CWE-352
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
mantisbt/mantisbt
Packagist
 before 1.3.11
1.3.11
mantisbt/mantisbt
Packagist
 2.0.0 up to 2.3.3
2.3.3
mantisbt/mantisbt
Packagist
 2.4.0 up to 2.4.1
2.4.1
mantisbt/mantisbt
Packagist
 2.0.0 up to 2.3.3, plus listed versions
2.3.02.3.12.3.2
2.3.3

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
Exploit-DBMantis Bug Tracker 1.3.10/2.3.0 - Cross-Site Request Forgery2017-05-20

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, Exploit-DB, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2017-7620 is a medium vulnerability (CVSS 6.5) in Mantisbt, published May 21, 2017. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.36%, the 71st percentile. Fixed in mantisbt/mantisbt 1.3.11.

References

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