How severe is CVE-2012-4751?

CVE-2012-4751 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2012-4751 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-4751?

CVE-2012-4751 primarily affects Otrs. In total, 54 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-4751?

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

When was CVE-2012-4751 published?

CVE-2012-4751 was published on 2012-10-22 and last updated on 2026-06-16.

CVE-2012-4751

CVE-2012-4751 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: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Otrs
Published: 2012-10-22
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in Open Ticket Request System (OTRS) Help Desk 2.4.x before 2.4.15, 3.0.x before 3.0.17, and 3.1.x before 3.1.11 allows remote attackers to inject arbitrary web script or HTML via an e-mail message body with whitespace before a javascript: URL in the SRC attribute of an element, as demonstrated by an IFRAME element.

Frequently asked questions

What is CVE-2012-4751?: Cross-site scripting (XSS) vulnerability in Open Ticket Request System (OTRS) Help Desk 2.4.x before 2.4.15, 3.0.x before 3.0.17, and 3.1.x before 3.1.11 allows remote attackers to inject arbitrary web script or HTML via an e-mail message body with whitespace before a javascript: URL in the SRC attribute of an element, as demonstrated by an IFRAME element.
How severe is CVE-2012-4751?: CVE-2012-4751 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2012-4751 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-4751?: CVE-2012-4751 primarily affects Otrs. In total, 54 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-4751?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-4751 published?: CVE-2012-4751 was published on 2012-10-22 and last updated on 2026-06-16.

References

Affected products (54)

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:2.4.10:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.11:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.12:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.13:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:2.4.14:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.7:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.8:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.9:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.10:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.11:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.12:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs:3.0.13:*:*:*:*:*:*:*

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