XSS in Symantec Web Isolation
CVE-2018-12246
Symantec Web Isolation (WI) 1.11 prior to 1.11.21 is susceptible to a reflected cross-site scripting (XSS) vulnerability. A remote attacker can target end users protected by WI with social engineering attacks using crafted URLs for legitimate web sites. A successful attack allows injecting malicious JavaScript code into the website's rendered copy running inside the end user's web browser. It does not allow injecting code into the real (isolated) copy of the website running on the WI Threat Isolation Engine.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.010 (61.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Symantec Web Isolation
- Symantec Corporation Web Isolation — versions 1.11 prior to 1.11.21
Weakness classification (CWE)
References
- support.symantec.com/content/unifiedweb/en_US/article.SYMSA1464.html (Vendor Advisory)
- www.securityfocus.com/bid/105581 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-12246?
- CVE-2018-12246 is a medium-severity vulnerability in Symantec Web Isolation, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-10-22.
- How severe is CVE-2018-12246?
- Medium severity. CVSS v3 base score is 6.1 out of 10.