# CVE-2026-18247: BlackBerry AtHoc IWS cross-site scripting in web portals

Source: https://junglewise.ai/threats/cve-2026-18247-blackberry-athoc-iws-cross-site-scripting-in-web-portals  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-11. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-18247 · Severity: info · Published 2026-08-11

AtHoc IWS is a critical incident management and mass notification system used by enterprises to coordinate emergency communications. A cross-site scripting (XSS) vulnerability in its web portal allows attackers to inject malicious code that executes in users' browsers, potentially enabling session hijacking, credential theft, or unauthorized actions performed on behalf of victims.

Vendors: [Blackberry](https://junglewise.ai/threats/vendors/blackberry).

## Quick answers

**Is CVE-2026-18247 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-18247 being exploited in the wild.

**How severe is CVE-2026-18247?** Informational severity, published 11 August 2026.

**Which products and versions are affected?** Blackberry AtHoc IWS before 7.21 HF-734.

**Is there a fix for CVE-2026-18247?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-18247 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-18247?** Check whether you run Blackberry AtHoc IWS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A reflected or stored cross-site scripting (XSS) vulnerability exists in the web portals of AtHoc IWS versions prior to 7.21 HF-734. The vulnerability allows an attacker to inject arbitrary JavaScript code that executes in the context of a victim's authenticated session, typically requiring user interaction (clicking a malicious link) for reflected XSS or no user action for stored XSS. An attacker can exploit this to steal session tokens, modify portal content, perform actions as the victim, or harvest sensitive incident management data. The vulnerability is fixed in version 7.21 HF-734 and later.

## Affected products

- BlackBerry AtHoc IWS before 7.21 HF-734

## Timeline

- 2026-08-11: disclosed

## References

- [https://support.blackberry.com/pkb/s/article/141248](https://support.blackberry.com/pkb/s/article/141248)