XSS in Privatebin
CVE-2020-5223
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.007 (49.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Privatebin — versions >= 1.2.0, < 1.2.2, >= 1.3.0, < 1.3.2
Weakness classification (CWE)
References
- github.com/PrivateBin/PrivateBin/security/advisories/GHSA-8j72-p2wm-6738 (Exploit, Third Party Advisory)
- privatebin.info/news/v1.3.2-v1.2.2-release.html (Release Notes, Vendor Advisory)
- github.com/PrivateBin/PrivateBin/commit/8d0ac336d23cd8c98e71d5f21cdadcae9c8a26e6 (Patch)
- github.com/PrivateBin/PrivateBin/issues/554 (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-5223?
- CVE-2020-5223 is a medium-severity vulnerability in Privatebin, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-01-23.
- How severe is CVE-2020-5223?
- Medium severity. CVSS v3 base score is 6.1 out of 10.