XSS in Microsoft Outlook
CVE-2019-1218
A spoofing vulnerability exists in the way Microsoft Outlook iOS software parses specifically crafted email messages. An authenticated attacker could exploit the vulnerability by sending a specially crafted email message to a victim. The attacker who successfully exploited this vulnerability could then perform cross-site scripting attacks on the affected systems and run scripts in the security context of the current user. The security update addresses the vulnerability by correcting how Outlook iOS parses specially crafted email messages.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.039 (89.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.039 · newest: 0.039 · change: 0.000
Affected products
- Microsoft Outlook
- Microsoft Outlook For iOS — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1218 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-1218?
- CVE-2019-1218 is a medium-severity vulnerability in Microsoft Outlook, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-08-14.
- How severe is CVE-2019-1218?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2019-1218 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.