How severe is CVE-2013-3551?

CVE-2013-3551 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2013-3551 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-3551?

CVE-2013-3551 primarily affects Otrs. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-3551?

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

When was CVE-2013-3551 published?

CVE-2013-3551 was published on 2020-02-21 and last updated on 2026-06-16.

CVE-2013-3551

CVE-2013-3551 is a medium-severity vulnerability in Otrs with a CVSS 3.x base score of 6.5. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Otrs
Published: 2020-02-21
Last modified: 2026-06-16

Description

Kernel/Modules/AgentTicketPhone.pm in Open Ticket Request System (OTRS) 3.0.x before 3.0.20, 3.1.x before 3.1.16, and 3.2.x before 3.2.7, and OTRS ITSM 3.0.x before 3.0.8, 3.1.x before 3.1.9, and 3.2.x before 3.2.5 does not properly restrict tickets, which allows remote attackers with a valid agent login to read restricted tickets via a crafted URL involving the ticket split mechanism.

Frequently asked questions

What is CVE-2013-3551?: Kernel/Modules/AgentTicketPhone.pm in Open Ticket Request System (OTRS) 3.0.x before 3.0.20, 3.1.x before 3.1.16, and 3.2.x before 3.2.7, and OTRS ITSM 3.0.x before 3.0.8, 3.1.x before 3.1.9, and 3.2.x before 3.2.5 does not properly restrict tickets, which allows remote attackers with a valid agent login to read restricted tickets via a crafted URL involving the ticket split mechanism.
How severe is CVE-2013-3551?: CVE-2013-3551 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2013-3551 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-3551?: CVE-2013-3551 primarily affects Otrs. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-3551?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-3551 published?: CVE-2013-3551 was published on 2020-02-21 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:otrs:otrs:*:*:*:*:*:*:*:*
cpe:2.3:a:otrs:otrs_itsm:*:*:*:*:*:*:*:*

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