How severe is CVE-2013-4088?

CVE-2013-4088 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-2013-4088 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4088?

CVE-2013-4088 affects Otrs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2013-4088?

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

When was CVE-2013-4088 published?

CVE-2013-4088 was published on 2020-02-21 and last updated on 2026-06-16.

CVE-2013-4088

CVE-2013-4088 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% (82nd 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/AgentTicketWatcher.pm in Open Ticket Request System (OTRS) 3.0.x before 3.0.21, 3.1.x before 3.1.17, and 3.2.x before 3.2.8 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-2013-4088?: Kernel/Modules/AgentTicketWatcher.pm in Open Ticket Request System (OTRS) 3.0.x before 3.0.21, 3.1.x before 3.1.17, and 3.2.x before 3.2.8 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-2013-4088?: CVE-2013-4088 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-2013-4088 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4088?: CVE-2013-4088 affects Otrs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2013-4088?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4088 published?: CVE-2013-4088 was published on 2020-02-21 and last updated on 2026-06-16.

References

Affected products (1)

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

More vulnerabilities in Otrs

CVE-2026-48188 — Critical (CVSS 9.1): An improper Input Validation vulnerability in OTRS or ((OTRS)) Community Edition database layer module allows an…
CVE-2013-4717 — High (CVSS 8.8): Multiple SQL injection vulnerabilities in Open Ticket Request System (OTRS) Help Desk 3.0.x before 3.0.22, 3.1.x before…
CVE-2017-17476 — High (CVSS 8.8): Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0.3, when cookie support…
CVE-2017-16921 — High (CVSS 8.8): In OTRS 6.0.x up to and including 6.0.1, OTRS 5.0.x up to and including 5.0.24, and OTRS 4.0.x up to and including…
CVE-2017-16664 — High (CVSS 8.8): Code injection exists in Kernel/System/Spelling.pm in Open Ticket Request System (OTRS) 5 before 5.0.24, 4 before…
CVE-2017-15864 — High (CVSS 8.8): In the Agent Frontend in Open Ticket Request System (OTRS) 3.3.x through 3.3.18, with a crafted URL it is possible to…

All CVEs affecting Otrs →

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →