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EUVD-2026-232767

2026-10-07T19:27:18.655689+00:00

EUVD-2026-232767

fkie_cve-2022-24833

2026-10-07T19:27:18.655725+00:00

PrivateBin is minimalist, open source online pastebin clone where the server has zero knowledge of pasted data. In PrivateBin < v1.4.0 a cross-site scripting (XSS) vulnerability was found. The vulnerability is present in all versions from v0.21 of the project, which was at the time still called ZeroBin. The issue is caused by the fact that SVGs can contain JavaScript. This can allow an attacker to execute code, if the user opens a paste with a specifically crafted SVG attachment, and interacts with the preview image and the instance isn't protected by an appropriate content security policy. Users are advised to either upgrade to version 1.4.0 or to ensure the content security policy of their instance is set correctly.

GHSA-cqcc-mm6x-vmvw — Persistent Cross-site Scripting vulnerability in PrivateBin

2026-10-07T19:27:18.655761+00:00

Affected: Packagist: privatebin/privatebin

In PrivateBin < v1.4.0 a cross-site scripting (XSS) vulnerability was found. The vulnerability is present since attachments with image preview got introduced in v0.21 of the project, which was at the time still called ZeroBin. The issue is caused by the fact that SVGs can contain JavaScript. This can allow an attacker to execute code, if the user opens a paste with a specifically crafted SVG attachment, and interacts with the preview image and the instance isn't protected by an appropriate content security policy.

As a consequence, we have mitigated the vulnerability in the preview and urge server administrators to either **upgrade** to a version with the fix or to ensure the content security policy of their instance is set correctly, ideally both. Additionally, we expanded our [directory listing tool with a checking mechanism](https://privatebin.info/directory/check) and **highly suggest server administrators to check their instance there** and, should there be a warning regarding the content security policy **adjust the CSP to our suggested one**, as it is shown in the configuration preset.

## Proof of concept

The vulnerability can be triggered as following:

1. Create the following SVG as a file: ```svg