How severe is CVE-2018-17783?

CVE-2018-17783 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-17783 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-17783?

CVE-2018-17783 affects Mantisbt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-17783?

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

When was CVE-2018-17783 published?

CVE-2018-17783 was published on 2018-10-30 and last updated on 2026-06-17.

CVE-2018-17783

CVE-2018-17783 is a medium-severity vulnerability in Mantisbt with a CVSS 3.x base score of 5.4. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mantisbt
Published: 2018-10-30
Last modified: 2026-06-17

Description

A cross-site scripting (XSS) vulnerability in the Edit Filter page (manage_filter_edit page.php) in MantisBT 2.1.0 through 2.17.1 allows remote attackers (if access rights permit it) to inject arbitrary code (if CSP settings permit it) through a crafted project name.

Frequently asked questions

What is CVE-2018-17783?: A cross-site scripting (XSS) vulnerability in the Edit Filter page (manage_filter_edit page.php) in MantisBT 2.1.0 through 2.17.1 allows remote attackers (if access rights permit it) to inject arbitrary code (if CSP settings permit it) through a crafted project name.
How severe is CVE-2018-17783?: CVE-2018-17783 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-17783 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-17783?: CVE-2018-17783 affects Mantisbt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-17783?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-17783 published?: CVE-2018-17783 was published on 2018-10-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mantisbt:mantisbt:*:*:*:*:*:*:*:*

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