CVE-2026-2452Network attack vector

System-secret disclosure via crafted email placeholders

Published Feb 16, 2026 · Updated Feb 16, 2026

Dynamic variable evaluation in pretix-newsletter 1.0.0 through 1.6.2 and 2.0.0 allows remote authenticated users to read system secrets. Its email placeholder renderer permits crafted attribute chains to traverse event object internals because the plugin's malicious-placeholder checks are incomplete. Control of email templates, normally available to pretix backend users, is required; exposed data includes database passwords and API keys.

CVSS severity6.5
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Dynamic variable evaluation in pretix-newsletter 1.0.0 through 1.6.2 and 2.0.0 allows remote authenticated users to read system secrets. Its email placeholder renderer permits crafted attribute chains to traverse event object internals because the plugin's malicious-placeholder checks are incomplete. Control of email templates, normally available to pretix backend users, is required; exposed data includes database passwords and API keys.

The record

CVE
CVE-2026-2452
Published
Feb 16, 2026
Updated
Feb 16, 2026
Vendor
pretix GmbH
Product
pretix-newsletter
Classifications
CWE-627, T1552.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0 <2.0.0 changes=[{"at":"1.6.3","status":"unaffected"}]
  2. Affected versionversion=2.0.0 <2.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

pretix GmbH · pretix-newsletterversion=1.0.0 <2.0.0 changes=[{"at":"1.6.3","status":"unaffected"}]; version=2.0.0 <2.0.1

Published CVSS scores

7.5rami.ioCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-627Dynamic Variable Evaluation
T1552.001Unsecured Credentials: Credentials In Files

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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