XXE in Google Android
CVE-2023-20918
In getPendingIntentLaunchFlags of ActivityOptions.java, there is a possible elevation of privilege due to a confused deputy with no additional execution privileges needed. User interaction is not needed for exploitation.
Vulnerability class: XXE (XML External Entity)
EPSS: 0.008 (52.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Google Android — versions 12, 11.0, 11
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@android.com (Patch)
- security@android.com (Patch)
- security@android.com (Patch)
- security@android.com (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-20918?
- CVE-2023-20918 is a critical-severity vulnerability in Google Android, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.8/10. Published 2023-07-13.
- How severe is CVE-2023-20918?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-20918 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.