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11 vulnerabilities by pretix
CVE-2026-5600 (GCVE-0-2026-5600)
Vulnerability from cvelistv5 – Published: 2026-04-08 12:24 – Updated: 2026-04-08 16:03
VLAI?
Summary
A new API endpoint introduced in pretix 2025 that is supposed to
return all check-in events of a specific event in fact returns all
check-in events belonging to the respective organizer. This allows an
API consumer to access information for all other events under the same
organizer, even those they should not have access to.
These records contain information on the time and result of every ticket scan as well as the ID of the matched ticket. Example:
{
"id": 123,
"successful": true,
"error_reason": null,
"error_explanation": null,
"position": 321,
"datetime": "2020-08-23T09:00:00+02:00",
"list": 456,
"created": "2020-08-23T09:00:00+02:00",
"auto_checked_in": false,
"gate": null,
"device": 1,
"device_id": 1,
"type": "entry"
}
An unauthorized user usually has no way to match these IDs (position) back to individual people.
Severity ?
CWE
- CWE-653 - Improper isolation or compartmentalization
Assigner
References
Impacted products
Credits
Pratik Karan
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CVE-2026-5599 (GCVE-0-2026-5599)
Vulnerability from cvelistv5 – Published: 2026-04-05 12:36 – Updated: 2026-04-06 14:33
VLAI?
Title
API allows deletion of users of other instance
Summary
A user with API access and "manage users" permission in any venueless
world is able to trigger deletion of user accounts in other worlds.
Severity ?
CWE
- CWE-653 - Improper isolation or compartmentalization
Assigner
References
Credits
Pratik Karan
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CVE-2026-4982 (GCVE-0-2026-4982)
Vulnerability from cvelistv5 – Published: 2026-03-27 12:32 – Updated: 2026-03-27 19:39
VLAI?
Title
Unauthorized access to chat contents
Summary
A user with permission "update world" in any Venueless world is able to exfiltrate chat messages from direct messages or channels in other worlds on the same server due to a bug in the reporting feature.
The exploitability is limited by the fact that the attacker needs to know the internal channel UUID of the chat channel, which is unlikely to be obtained by an outside attacker, especially for direct messages.
Severity ?
CWE
- CWE-20 - Improper input validation
Assigner
References
Impacted products
Credits
Pratik Karan
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CVE-2026-2452 (GCVE-0-2026-2452)
Vulnerability from cvelistv5 – Published: 2026-02-16 10:16 – Updated: 2026-02-17 17:06
VLAI?
Title
Unsafe variable evaluation in email templates
Summary
Emails sent by pretix can utilize placeholders that will be filled with customer data. For example, when {name}
is used in an email template, it will be replaced with the buyer's
name for the final email. This mechanism contained a security-relevant bug:
It was possible to exfiltrate information about the pretix system through specially crafted placeholder names such as {{event.__init__.__code__.co_filename}}.
This way, an attacker with the ability to control email templates
(usually every user of the pretix backend) could retrieve sensitive
information from the system configuration, including even database
passwords or API keys. pretix does include mechanisms to prevent the usage of such
malicious placeholders, however due to a mistake in the code, they were
not fully effective for this plugin.
Out of caution, we recommend that you rotate all passwords and API keys contained in your pretix.cfg https://docs.pretix.eu/self-hosting/config/ file.
Severity ?
CWE
- CWE-627 - Dynamic Variable Evaluation
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| pretix | pretix-newsletter |
Affected:
1.0.0 , < 2.0.0
(python)
Affected: 2.0.0 , < 2.0.1 (python) |
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CVE-2026-2451 (GCVE-0-2026-2451)
Vulnerability from cvelistv5 – Published: 2026-02-16 10:16 – Updated: 2026-02-17 17:06
VLAI?
Title
Unsafe variable evaluation in email templates
Summary
Emails sent by pretix can utilize placeholders that will be filled with customer data. For example, when {name}
is used in an email template, it will be replaced with the buyer's
name for the final email. This mechanism contained a security-relevant bug:
It was possible to exfiltrate information about the pretix system through specially crafted placeholder names such as {{event.__init__.__code__.co_filename}}.
This way, an attacker with the ability to control email templates
(usually every user of the pretix backend) could retrieve sensitive
information from the system configuration, including even database
passwords or API keys. pretix does include mechanisms to prevent the usage of such
malicious placeholders, however due to a mistake in the code, they were
not fully effective for this plugin.
Out of caution, we recommend that you rotate all passwords and API keys contained in your pretix.cfg file.
Severity ?
CWE
- CWE-627 - Dynamic Variable Evaluation
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| pretix | pretix-doistep |
Affected:
1.0.0 , < 1.3.2
(python)
|
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CVE-2026-2415 (GCVE-0-2026-2415)
Vulnerability from cvelistv5 – Published: 2026-02-16 10:15 – Updated: 2026-02-17 17:06
VLAI?
Title
Unsafe variable evaluation in email templates
Summary
Emails sent by pretix can utilize placeholders that will be filled with customer data. For example, when {name}
is used in an email template, it will be replaced with the buyer's
name for the final email. This mechanism contained two security-relevant
bugs:
*
It was possible to exfiltrate information about the pretix system through specially crafted placeholder names such as {{event.__init__.__code__.co_filename}}.
This way, an attacker with the ability to control email templates
(usually every user of the pretix backend) could retrieve sensitive
information from the system configuration, including even database
passwords or API keys. pretix does include mechanisms to prevent the usage of such
malicious placeholders, however due to a mistake in the code, they were
not fully effective for the email subject.
*
Placeholders in subjects and plain text bodies of emails were
wrongfully evaluated twice. Therefore, if the first evaluation of a
placeholder again contains a placeholder, this second placeholder was
rendered. This allows the rendering of placeholders controlled by the
ticket buyer, and therefore the exploitation of the first issue as a
ticket buyer. Luckily, the only buyer-controlled placeholder available
in pretix by default (that is not validated in a way that prevents the
issue) is {invoice_company}, which is very unusual (but not
impossible) to be contained in an email subject template. In addition
to broadening the attack surface of the first issue, this could
theoretically also leak information about an order to one of the
attendees within that order. However, we also consider this scenario
very unlikely under typical conditions.
Out of caution, we recommend that you rotate all passwords and API keys contained in your pretix.cfg https://docs.pretix.eu/self-hosting/config/ file.
Severity ?
CWE
- CWE-627 - Dynamic Variable Evaluation
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2025-14881 (GCVE-0-2025-14881)
Vulnerability from cvelistv5 – Published: 2025-12-19 12:24 – Updated: 2025-12-19 12:58
VLAI?
Title
Insecure direct object reference
Summary
Multiple API endpoints allowed access to sensitive files from other users by knowing the UUID of the file that were not intended to be accessible by UUID only.
Severity ?
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
Credits
Deniz Parlak (https://github.com/DenizParlak)
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CVE-2025-14882 (GCVE-0-2025-14882)
Vulnerability from cvelistv5 – Published: 2025-12-19 12:24 – Updated: 2025-12-19 13:50
VLAI?
Title
Insecure direct object reference
Summary
An API endpoint allowed access to sensitive files from other users by knowing the UUID of the file that were not intended to be accessible by UUID only.
Severity ?
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| pretix | pretix-offlinesales |
Affected:
1.12.0 , ≤ 1.12.1
(python)
|
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CVE-2025-13742 (GCVE-0-2025-13742)
Vulnerability from cvelistv5 – Published: 2025-11-27 11:04 – Updated: 2025-11-28 15:22
VLAI?
Title
Limited HTML injection in emails
Summary
Emails sent by pretix can utilize placeholders that will be filled with customer data. For example, when {name} is used in an email template, it will be replaced with the buyer's name for the final email. If the name of the attendee contained HTML or Markdown formatting, this was rendered as HTML in the resulting email. This way, a user could inject links or other formatted text through a maliciously formatted name. Since pretix applies a strict allow list approach to allowed HTML tags, this could not be abused for XSS or similarly dangerous attack chains. However, it can be used to manipulate emails in a way that makes user-provided content appear in a trustworthy and credible way, which can be abused for phishing.
Severity ?
CWE
- Limited HTML injection in emails
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
Date Public ?
2025-11-27 11:00
Credits
Jan Roring (binsec GmbH)
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CVE-2024-8113 (GCVE-0-2024-8113)
Vulnerability from cvelistv5 – Published: 2024-08-23 14:18 – Updated: 2024-08-30 18:40
VLAI?
Title
Stored XSS in Placeholder Samples in Mail Preview
Summary
Stored XSS in organizer and event settings of pretix up to 2024.7.0 allows malicious event organizers to inject HTML tags into e-mail previews on settings page. The default Content Security Policy of pretix prevents execution of attacker-provided scripts, making exploitation unlikely. However, combined with a CSP bypass (which is not currently known) the vulnerability could be used to impersonate other organizers or staff users.
Severity ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
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CVE-2024-27447 (GCVE-0-2024-27447)
Vulnerability from cvelistv5 – Published: 2024-02-26 00:00 – Updated: 2024-08-05 15:16
VLAI?
Summary
pretix before 2024.1.1 mishandles file validation.
Severity ?
9.8 (Critical)
CWE
- n/a
Assigner
References
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"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2024-27447",
"datePublished": "2024-02-26T00:00:00.000Z",
"dateReserved": "2024-02-26T00:00:00.000Z",
"dateUpdated": "2024-08-05T15:16:33.447Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}