CVE-2020-5223 : In PrivateBin versions 1.2.0 before 1.2.2, and 1.3.0 before 1.3.2, a persistent

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.

Published 2020-01-23 02:15:13

Updated 2020-01-29 16:20:55

Source GitHub, Inc.

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Products affected by CVE-2020-5223

Privatebin » Privatebin
Versions from including (>=) 1.3 and before (<) 1.3.2
cpe:2.3:a:privatebin:privatebin:*:*:*:*:*:*:*:*
Matching versions
Privatebin » Privatebin
Versions from including (>=) 1.2 and before (<) 1.2.2
cpe:2.3:a:privatebin:privatebin:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2020-5223

EPSS FAQ

0.08%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 33 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-5223

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
2.1	LOW	AV:N/AC:H/Au:S/C:N/I:P/A:N	3.9	2.9	NIST
Access Vector: Network Access Complexity: High Authentication: Single Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
4.4	MEDIUM	CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N	1.3	2.7	NIST
Attack Vector: Network Attack Complexity: High Privileges Required: Low User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None
6.1	MEDIUM	CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:N	0.8	4.7	GitHub, Inc.
Attack Vector: Local Attack Complexity: High Privileges Required: High User Interaction: None Scope: Changed Confidentiality: High Integrity: Low Availability: None

CWE ids for CVE-2020-5223

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)

References for CVE-2020-5223

https://github.com/PrivateBin/PrivateBin/security/advisories/GHSA-8j72-p2wm-6738

Persistent XSS vulnerability in filename of attached file in PrivateBin < 1.3.2/1.2.2 (2020-01-11) · Advisory · PrivateBin/PrivateBin · GitHub
Exploit;Third Party Advisory
https://github.com/PrivateBin/PrivateBin/issues/554

HTML injection via unescaped attachment filename · Issue #554 · PrivateBin/PrivateBin · GitHub
Third Party Advisory
https://privatebin.info/news/v1.3.2-v1.2.2-release.html

Release v1.3.2 & v1.2.2 - Fix for persistent XSS vulnerability in filenames of attached files - PrivateBin
Release Notes;Vendor Advisory
https://github.com/PrivateBin/PrivateBin/commit/8d0ac336d23cd8c98e71d5f21cdadcae9c8a26e6

addressing jsverifyRngState 8b8f0d4ec2a67139b5, fixes HTML injection … · PrivateBin/PrivateBin@8d0ac33 · GitHub
Patch

Jump to

Vulnerability Details : CVE-2020-5223

Products affected by CVE-2020-5223

Exploit prediction scoring system (EPSS) score for CVE-2020-5223

CVSS scores for CVE-2020-5223

CWE ids for CVE-2020-5223

References for CVE-2020-5223