How severe is CVE-2017-7620?

CVE-2017-7620 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2017-7620 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-7620?

CVE-2017-7620 primarily affects Mantisbt. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-7620?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-7620 published?

CVE-2017-7620 was published on 2017-05-21 and last updated on 2026-06-17.

CVE-2017-7620

CVE-2017-7620 is a medium-severity vulnerability in Mantisbt with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Mantisbt
Published: 2017-05-21
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2017-7620?: CVE-2017-7620 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2017-7620 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-7620?: CVE-2017-7620 primarily affects Mantisbt. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-7620?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-7620 published?: CVE-2017-7620 was published on 2017-05-21 and last updated on 2026-06-17.

References

Affected products (11)

cpe:2.3:a:mantisbt:mantisbt:*:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:2.1.2:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:2.2.2:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:2.2.3:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:2.2.4:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:2.4.0:*:*:*:*:*:*:*

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