What is CVE-2016-8505?

CVE-2016-8505 is a medium-severity vulnerability in Yandex Yandex.browser, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2016-10-26.

How severe is CVE-2016-8505?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Yandex Yandex.browser

CVE-2016-8505

XSS in Yandex Browser BookReader in Yandex browser for desktop for versions before 16.6. could be used by remote attacker for evaluation arbitrary javascript code.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2016-10-26 · last modified 2026-06-17.

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: 0.009 (56.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Yandex Yandex.browser
Yandex N.v. Browser For Desktop — versions before 16.6 for OSx and Windows

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.securityfocus.com/bid/93925 (VDB Entry, Third Party Advisory, vdb-entry)
browser.yandex.com/security/changelogs/ (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2016-8505?: CVE-2016-8505 is a medium-severity vulnerability in Yandex Yandex.browser, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2016-10-26.
How severe is CVE-2016-8505?: Medium severity. CVSS v3 base score is 6.1 out of 10.