An improper neutralization of active SVG content in OTRS or ((OTRS)) Community Edition ticket article rendering allows attackers to inject specially crafted SVG payloads via email content, leading to browser-side resource exhaustion and denial of service when affected tickets are opened by an agent or customer. The issue can be exploited without JavaScript execution and is not mitigated by the configured Content Security Policy (CSP).
This issue affects OTRS:
* 7.0.X
* 8.0.X
* 2023.X
* 2024.X
* 2025.X
* 2026.X before 2026.4.X
Please note that ((OTRS)) Community Edition 6.x and before are vulnerable. Products based on the ((OTRS)) Community Edition also very likely to be affected
CVSS Score
6.5
EPSS Score
0.002
Published
2026-06-01
An uncontrolled allocation of resources without limits or throttling in the e-mail handling in OTRS allows excessive allocation which may lead to the abortion of the webserver.This issue affects OTRS:
* 8.0.X
* 2023.X
* 2024.X
* 2025.X
* 2026.X before 2026.4.X
Please note that ((OTRS)) Community Edition 6.x, OTRS 7.x and products based on the ((OTRS)) Community Edition also very likely to be affected
CVSS Score
5.7
EPSS Score
0.002
Published
2026-06-01
An improper Input Validation vulnerability in OTRS or ((OTRS)) Community Edition database layer module allows an unauthenticated SQL injection which can lead to an authentication bypass. This issue only affects the system if the MySQL/MariaDB server is configured with the NO_BACKSLASH_ESCAPES SQL mode.
This issue affects OTRS:
* 7.0.X
* 8.0.X
* 2023.X
* 2024.X
* 2025.X
* 2026.X before 2026.4.X
* (OTRS)) Community Edition: 6.0.x
Products based on the ((OTRS)) Community Edition also very likely to be affected
CVSS Score
9.1
EPSS Score
0.003
Published
2026-06-01
An improper Input Validation vulnerability in OTRS Customer Backend module allows to access customer information which are restricted to other groups. Please note that the feature has to be anabled and CustomerGroupSupport has to be used to be affected.
This issue affects OTRS:
* 7.0.X
* 8.0.X
* 2023.X
* 2024.X
* 2025.X
* 2026.X before 2026.4.X
CVSS Score
5.7
EPSS Score
0.002
Published
2026-06-01
An incorrect handling of permissions in OTRS External Interface and the ConfigItem List module allows an authenticated customer to query the system for CI information. Please note that CMDB has to be anabled and CustomerGroupSupport has to be used to be affected.
This issue affects OTRS:
* 7.0.X
* 8.0.X
* 2023.X
* 2024.X
* 2025.X
* 2026.X before 2026.4.X
CVSS Score
3.5
EPSS Score
0.001
Published
2026-06-01
An incorrect handling of permissions in STORM powered by OTRS and in OTRS (2026.x and above) Document Search Article Meta Filters modules allows gaining knowledge about number of affected CIs, SLA and services without gaining access to them.
This issue affects OTRS with STORM modules:
* 7.0.X
* 8.0.X
* 2023.X
* 2024.X
* 2025.X
* 2026.X before 2026.4.X
CVSS Score
3.5
EPSS Score
0.001
Published
2026-06-01
A vulnerability in OTRS Application Server allows session hijacking due to missing attributes for sensitive
cookie settings in HTTPS sessions. A request to an OTRS endpoint from a possible malicious web site, would send the authentication cookie, performing an unwanted read operation.
This issue affects:
* OTRS 7.0.X
* OTRS 8.0.X
* OTRS 2023.X
* OTRS 2024.X
* OTRS 2025.x
CVSS Score
4.8
EPSS Score
0.001
Published
2025-03-10
An incorrect privilege assignment vulnerability in the inline editing functionality of OTRS can lead to privilege escalation. This flaw allows an agent with read-only permissions to gain full access to a ticket. This issue arises in very rare instances when an admin has previously enabled the setting 'RequiredLock' of 'AgentFrontend::Ticket::InlineEditing::Property###Watch' in the system configuration.This issue affects OTRS:
* 8.0.X
* 2023.X
* from 2024.X through 2024.4.x
CVSS Score
5.2
EPSS Score
0.003
Published
2024-07-15
Improper filtering of fields when using the export function in the ticket overview of the external interface in OTRS could allow an authorized user to download a list of tickets containing information about tickets of other customers. The problem only occurs if the TicketSearchLegacyEngine has been disabled by the administrator.
This issue affects OTRS: 8.0.X, 2023.X, from 2024.X through 2024.4.x
CVSS Score
5.7
EPSS Score
0.004
Published
2024-07-15
Improper Input Validation vulnerability in the upload functionality for user avatars allows functionality misuse due to missing check of filetypes.
This issue affects OTRS: from 7.0.X through 7.0.48, from 8.0.X through 8.0.37, from 2023 through 2023.1.1.
CVSS Score
3.5
EPSS Score
0.003
Published
2024-01-29
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