How severe is CVE-2011-1518?

CVE-2011-1518 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2011-1518 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-2011-1518?

CVE-2011-1518 primarily affects Otrs. In total, 28 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1518?

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

When was CVE-2011-1518 published?

CVE-2011-1518 was published on 2011-04-18 and last updated on 2026-06-16.

CVE-2011-1518

CVE-2011-1518 is a medium-severity vulnerability in Otrs 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: Otrs
Published: 2011-04-18
Last modified: 2026-06-16

Description

Multiple cross-site scripting (XSS) vulnerabilities in Open Ticket Request System (OTRS) 2.4.x before 2.4.10 and 3.x before 3.0.7 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Frequently asked questions

What is CVE-2011-1518?: Multiple cross-site scripting (XSS) vulnerabilities in Open Ticket Request System (OTRS) 2.4.x before 2.4.10 and 3.x before 3.0.7 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
How severe is CVE-2011-1518?: CVE-2011-1518 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-1518 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-2011-1518?: CVE-2011-1518 primarily affects Otrs. In total, 28 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1518?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1518 published?: CVE-2011-1518 was published on 2011-04-18 and last updated on 2026-06-16.

References

Affected products (28)

cpe:2.3:a:otrs:otrs:2.4.0:beta1:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.0:beta2:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.0:beta3:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.0:beta4:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.0:beta5:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.0:beta6:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.1:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.2:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.3:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.4:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.5:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.6:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.7:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.8:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.9:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.0:beta1:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.0:beta2:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.0:beta3:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.0:beta4:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.0:beta5:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.0:beta6:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.0:beta7:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.3:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.4:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.5:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.6:*:*:*:*:*:*:*

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