CVE-2021-41318

In Progress WhatsUp Gold prior to version 21.1.0, an application endpoint failed to adequately sanitize malicious input. which could allow an unauthenticated attacker to execute arbitrary code in a victim's browser.

What this means for your business

It affects Progress Whatsup Gold. It matters if your company, or a supplier that handles your data, runs it.
Code showing how to exploit it has been published, but real attacks have not been confirmed.
An attacker can use it remotely, over a network, without a login, but only after tricking someone into an action such as opening a file or a link.
FIRST's prediction model gives it a 6% chance of attack attempts being seen in the next 30 days, ranking above 92% of all known flaws.

What to do

1Check whether your company or your suppliers run Progress Whatsup Gold, and which version. The affected versions are listed further down this page.
2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

Check if you’re exposed Book a call

Scoring

CVSS: 6.1 (v3.1)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Assigned by: cve@mitre.org

Dates

Published: 2021-09-28
Last modified: 2026-09-25
Sources: NVD

Affected products

Progress Whatsup Gold- 21.1.0

As listed in the NVD configuration data. Not a statement about your estate.