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.
References (2)
Core 2
Core References
Exploit, Third Party Advisory x_refsource_confirm
https://github.com/PrivateBin/PrivateBin/security/advisories/GHSA-cqcc-mm6x-vmvw
Patch, Third Party Advisory x_refsource_misc
https://github.com/PrivateBin/PrivateBin/commit/2a4d572c1e9eb9b608d32b0cc0cb3b6c3b684eab
Scores
CVSS v3
8.2
EPSS
0.0063
EPSS Percentile
70.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (2)
privatebin/privatebin
0.21 - 1.4.0
privatebin/privatebin
0.21 - 1.4.0Packagist
Published
Apr 11, 2022
Tracked Since
Feb 18, 2026