7.4
CVE-2021-43776
- EPSS 0.31%
- Published 26.11.2021 19:15:07
- Last modified 21.11.2024 06:29:45
- Source security-advisories@github.com
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Backstage is an open platform for building developer portals. In affected versions the auth-backend plugin allows a malicious actor to trick another user into visiting a vulnerable URL that executes an XSS attack. This attack can potentially allow the attacker to exfiltrate access tokens or other secrets from the user's browser. The default CSP does prevent this attack, but it is expected that some deployments have these policies disabled due to incompatibilities. This is vulnerability is patched in version `0.4.9` of `@backstage/plugin-auth-backend`.
Data is provided by the National Vulnerability Database (NVD)
Linuxfoundation ≫ Auth Backend SwPlatformnode.js Version < 0.4.9
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
| Type | Source | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.31% | 0.537 |
| Source | Base Score | Exploit Score | Impact Score | Vector string |
|---|---|---|---|---|
| nvd@nist.gov | 6.1 | 2.8 | 2.7 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
|
| nvd@nist.gov | 4.3 | 8.6 | 2.9 |
AV:N/AC:M/Au:N/C:N/I:P/A:N
|
| security-advisories@github.com | 7.4 | 2.8 | 4 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
|
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.