CVE-2026-18247 DOM-Based Cross-Site Scripting in BlackBerry AtHoc Web Portals
An attacker can execute arbitrary scripts in the victim's session context via DOM-based XSS in BlackBerry AtHoc IWS web portals.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-18247?
CVE-2026-18247 is a medium-severity cross-site scripting vulnerability in BlackBerry AtHoc IWS, published on 11 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A Cross Site Scripting (XSS) vulnerability in the Web Portals of AtHoc IWS in versions earlier than 7.21 HF-734 could allow an attacker to potentially execute actions in the context of the victim's session.
Weakness: CWE-79
Which versions are affected by CVE-2026-18247?
How do I fix CVE-2026-18247?
No fix has been published for CVE-2026-18247 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-18247 being exploited?
There is no known exploitation of CVE-2026-18247 in the wild and no public exploit code.
Sources
Also known as GHSA-7mpx-rcg7-4jw2.