The BWOCXRUN.BwocxrunCtrl.1 control contains a method named
OpenUrlToBufferTimeout. This method takes a URL as a parameter and
returns its contents to the caller in JavaScript. The URLs are accessed
in the security context of the current browser session. The control does
not perform any URL validation and allows file:// URLs that access the
local disk.
The method can be used to open a URL (including file URLs) and read
the URLs through JavaScript. This method could also be used to reach any
arbitrary URL to which the browser has access.
CISA SSVCTrack at low or medium mission impact; Track or Track* or Attend at high (mission-essential systems).
No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact unknown (not published for this CVE). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table