CVE-2026-57532Network attack vector

Cross-user script execution via unsanitized PDF layouts

Published Jun 25, 2026 · Updated Jun 25, 2026

Stored XSS in the pretix PDF layout editor allows remote authenticated users to execute JavaScript in another backend user's browser. The editor inserts attacker-controlled HTML from a stored ticket or badge layout specification into its page without neutralizing script-capable markup or enforcing a strong Content Security Policy. The attacker needs backend access to modify a layout, and a second backend user must open the editor; affected releases are before 2026.3.4, 2026.4.0 through 2026.4.3, and 2026.5.0 through 2026.5.1.

CVSS severity8.8
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in the pretix PDF layout editor allows remote authenticated users to execute JavaScript in another backend user's browser. The editor inserts attacker-controlled HTML from a stored ticket or badge layout specification into its page without neutralizing script-capable markup or enforcing a strong Content Security Policy. The attacker needs backend access to modify a layout, and a second backend user must open the editor; affected releases are before 2026.3.4, 2026.4.0 through 2026.4.3, and 2026.5.0 through 2026.5.1.

The record

CVE
CVE-2026-57532
Published
Jun 25, 2026
Updated
Jun 25, 2026
Vendor
pretix GmbH
Product
pretix
Classifications
CWE-80, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 25, 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=0 <2026.3.4
  2. Affected versionversion=2026.4.0 <2026.4.4
  3. Affected versionversion=2026.5.0 <2026.5.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

pretix GmbH · pretixversion=0 <2026.3.4; version=2026.4.0 <2026.4.4; version=2026.5.0 <2026.5.2

Published CVSS scores

8.8rami.ioCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA: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.

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-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
T1203Exploitation for Client Execution

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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