CVE-2020-5223

Public Exploit
Persistent XSS vulnerability in filename of attached file in PrivateBin

Description

In PrivateBin versions 1.2.0 before 1.2.2, and 1.3.0 before 1.3.2, a persistent XSS attack is possible. Under certain conditions, a user provided attachment file name can inject HTML leading to a persistent Cross-site scripting (XSS) vulnerability. The vulnerability has been fixed in PrivateBin v1.3.2 & v1.2.2. Admins are urged to upgrade to these versions to protect the affected users.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.45%
Vendor Advisory privatebin.info
Affected: PrivateBin PrivateBin
Published at:
Updated at:

References

Link Tags
https://github.com/PrivateBin/PrivateBin/security/advisories/GHSA-8j72-p2wm-6738 third party advisory exploit
https://privatebin.info/news/v1.3.2-v1.2.2-release.html release notes vendor advisory
https://github.com/PrivateBin/PrivateBin/commit/8d0ac336d23cd8c98e71d5f21cdadcae9c8a26e6 patch
https://github.com/PrivateBin/PrivateBin/issues/554 third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-5223?
CVE-2020-5223 has been scored as a medium severity vulnerability.
How to fix CVE-2020-5223?
To fix CVE-2020-5223, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-5223 being actively exploited in the wild?
It is possible that CVE-2020-5223 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-5223?
CVE-2020-5223 affects PrivateBin PrivateBin.
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