CVE-2023-44464Network attack vector

Remote code execution via disguised EPS uploads

Published Sep 29, 2023 · Updated Sep 23, 2024

Improper image validation in pretix 1.0.0 through 2023.7.1 allows remote attackers to execute code through a disguised EPS upload. Image upload paths pass content to Pillow based on an allowed filename extension without restricting the decoded format, so renamed EPS data invokes Ghostscript. Reachability requires backend image-upload access or an event that exposes a customer file-upload question, and successful code execution also depends on a vulnerable Ghostscript installation.

CVSS severity7.8
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper image validation in pretix 1.0.0 through 2023.7.1 allows remote attackers to execute code through a disguised EPS upload. Image upload paths pass content to Pillow based on an allowed filename extension without restricting the decoded format, so renamed EPS data invokes Ghostscript. Reachability requires backend image-upload access or an event that exposes a customer file-upload question, and successful code execution also depends on a vulnerable Ghostscript installation.

The record

CVE
CVE-2023-44464
Published
Sep 29, 2023
Updated
Sep 23, 2024
Vendor
pretix GmbH
Product
pretix
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 2024Record 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=0 <2023.7.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

pretix GmbH · pretixversion=0 <2023.7.2

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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