CVE-2026-57532
Adobe Acrobat Reader PDF Ticket HTML Injection
Description
Malicious HTML content contained in the layout specification of a PDF ticket or badge layout was executed when the PDF editor is opened in the browser. This could allow one backend user to inject JavaScript into the browser context of another backend user. Due to requirements of the PDF rendering and editing libraries used, this is one of the few pages in our backend that do not have a strong Content-Security-Policy that would render this capability useless for most scenarios.
INFO
Published Date :
June 25, 2026, 3:16 p.m.
Last Modified :
June 25, 2026, 4:16 p.m.
Remotely Exploit :
Yes !
Source :
655498c3-6ec5-4f0b-aea6-853b334d05a6
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | HIGH | 655498c3-6ec5-4f0b-aea6-853b334d05a6 | ||||
| CVSS 4.0 | HIGH | 655498c3-6ec5-4f0b-aea6-853b334d05a6 |
Solution
- Apply a strict Content-Security-Policy to PDF rendering pages.
- Sanitize or validate HTML content in PDF layouts.
- Update PDF rendering and editing libraries.
- Review backend user input handling for PDFs.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-57532.
| URL | Resource |
|---|---|
| https://pretix.eu/about/en/blog/20260625-release-2026-5-2/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-57532 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-57532
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-57532 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-57532 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 25, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-57532', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-06-25T15:04:18.329787Z'} -
New CVE Received by 655498c3-6ec5-4f0b-aea6-853b334d05a6
Jun. 25, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://github.com/pretix/pretix', 'vendor': 'pretix', 'product': 'pretix', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2026.3.4', 'versionType': 'python'}, {'status': 'affected', 'version': '2026.4.0', 'lessThan': '2026.4.4', 'versionType': 'python'}, {'status': 'affected', 'version': '2026.5.0', 'lessThan': '2026.5.2', 'versionType': 'python'}], 'packageName': 'pretix', 'collectionURL': 'https://pypi.python.org', 'defaultStatus': 'unaffected'}] Added Description Malicious HTML content contained in the layout specification of a PDF ticket or badge layout was executed when the PDF editor is opened in the browser. This could allow one backend user to inject JavaScript into the browser context of another backend user. Due to requirements of the PDF rendering and editing libraries used, this is one of the few pages in our backend that do not have a strong Content-Security-Policy that would render this capability useless for most scenarios. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-80 Added Reference https://pretix.eu/about/en/blog/20260625-release-2026-5-2/