How severe is CVE-2011-3358?

CVE-2011-3358 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2011-3358 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-3358?

CVE-2011-3358 primarily affects Mantisbt. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-3358?

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

When was CVE-2011-3358 published?

CVE-2011-3358 was published on 2011-09-21 and last updated on 2026-06-16.

CVE-2011-3358

CVE-2011-3358 is a medium-severity vulnerability in Mantisbt with a CVSS 2.0 base score of 4.3. 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 2.0 base score 4.3)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mantisbt
Published: 2011-09-21
Last modified: 2026-06-16

Description

Multiple cross-site scripting (XSS) vulnerabilities in MantisBT before 1.2.8 allow remote attackers to inject arbitrary web script or HTML via the (1) os, (2) os_build, or (3) platform parameter to (a) bug_report_page.php or (b) bug_update_advanced_page.php, related to use of the Projax library.

Frequently asked questions

What is CVE-2011-3358?: Multiple cross-site scripting (XSS) vulnerabilities in MantisBT before 1.2.8 allow remote attackers to inject arbitrary web script or HTML via the (1) os, (2) os_build, or (3) platform parameter to (a) bug_report_page.php or (b) bug_update_advanced_page.php, related to use of the Projax library.
How severe is CVE-2011-3358?: CVE-2011-3358 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-3358 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3358?: CVE-2011-3358 primarily affects Mantisbt. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-3358?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-3358 published?: CVE-2011-3358 was published on 2011-09-21 and last updated on 2026-06-16.

References

Affected products (27)

cpe:2.3:a:mantisbt:mantisbt:*:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:0.19.3:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:0.19.4:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.0.4:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.0.5:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.0.6:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.0.7:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.0.8:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.1.4:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.1.5:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.1.6:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.1.7:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.1.8:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.2.5:*:*:*:*:*:*:*
cpe:2.3:a:mantisbt:mantisbt:1.2.6:*:*:*:*:*:*:*

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