CVE-2011-1689

CVE-2011-1689 is a medium-severity vulnerability in Bestpractical Rt 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% (81st percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-79
• Affected product: Bestpractical Rt
• Published: 2011-04-22
• Last modified: 2026-06-16

Description

Multiple cross-site scripting (XSS) vulnerabilities in Best Practical Solutions RT 2.0.0 through 3.6.10, 3.8.0 through 3.8.9, and 4.0.0rc through 4.0.0rc7 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Frequently asked questions

What is CVE-2011-1689?

Multiple cross-site scripting (XSS) vulnerabilities in Best Practical Solutions RT 2.0.0 through 3.6.10, 3.8.0 through 3.8.9, and 4.0.0rc through 4.0.0rc7 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.

How severe is CVE-2011-1689?

CVE-2011-1689 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2011-1689 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1689?

CVE-2011-1689 primarily affects Bestpractical Rt. In total, 79 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1689?

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

When was CVE-2011-1689 published?

CVE-2011-1689 was published on 2011-04-22 and last updated on 2026-06-16.

References

• http://blog.bestpractical.com/2011/04/security-vulnerabilities-in-rt.html
• http://lists.bestpractical.com/pipermail/rt-announce/2011-April/000187.html
• http://lists.bestpractical.com/pipermail/rt-announce/2011-April/000188.html
• http://lists.bestpractical.com/pipermail/rt-announce/2011-April/000189.html
• http://secunia.com/advisories/44189
• http://www.debian.org/security/2011/dsa-2220
• http://www.securityfocus.com/bid/47383
• http://www.vupen.com/english/advisories/2011/1071
• https://bugzilla.redhat.com/show_bug.cgi?id=696795
• https://exchange.xforce.ibmcloud.com/vulnerabilities/66796

Affected products (79)

• cpe:2.3:a:bestpractical:rt:2.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.5.3:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.8.2:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.9:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.11:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.12:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.13:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.14:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:2.0.15:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.0.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.0.9:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.0.10:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.0.11:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.0.12:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.2.3:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:bestpractical:rt:3.4.3:*:*:*:*:*:*:*

More vulnerabilities in Bestpractical Rt

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• CVE-2012-4732 — Medium (CVSS 6.8): Cross-site request forgery (CSRF) vulnerability in Request Tracker (RT) 3.8.12 and other versions before 3.8.15, and…
• CVE-2011-4458 — Medium (CVSS 6.8): Best Practical Solutions RT 3.6.x, 3.7.x, and 3.8.x before 3.8.12 and 4.x before 4.0.6, when the VERPPrefix and…
• CVE-2011-2085 — Medium (CVSS 6.8): Multiple cross-site request forgery (CSRF) vulnerabilities in Best Practical Solutions RT before 3.8.12 and 4.x before…
• CVE-2011-5093 — Medium (CVSS 6.5): Best Practical Solutions RT 4.x before 4.0.6 does not properly implement the DisallowExecuteCode option, which allows…

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