Vulnerability in Pallets Flask
CVE-2023-30861
Flask is a lightweight WSGI web application framework. When all of the following conditions are met, a response containing data intended for one client may be cached and subsequently sent by the proxy to other clients. If the proxy also ca…
EPSS: 0.013 (66.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Pallets Flask — versions >= 2.3.0, < 2.3.2, < 2.2.5
- Palletsprojects Flask
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- security-advisories@github.com
- security-advisories@github.com
- security-advisories@github.com
Frequently asked questions
- What is CVE-2023-30861?
- CVE-2023-30861 is a high-severity vulnerability in Pallets Flask, classified under CWE-539. CVSS score: 7.5/10. Published 2023-05-02.
- How severe is CVE-2023-30861?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2023-30861 known to be exploited?
- 20 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.