CVE-2021-35493 TIBCO WebFOCUS Cross Site Scripting vulnerabilities
Low-privileged attackers can execute scripts on victims' systems via stored and reflected XSS in TIBCO WebFOCUS components, requiring user interaction.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-35493?
CVE-2021-35493 is a critical cross-site scripting vulnerability in TIBCO WebFOCUS Client, published on 14 Sep 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
The WebFOCUS Reporting Server and WebFOCUS Client components of TIBCO Software Inc.'s TIBCO WebFOCUS Client, TIBCO WebFOCUS Installer, and TIBCO WebFOCUS Reporting Server contain easily exploitable Stored and Reflected Cross Site Scripting (XSS) vulnerabilities that allow a low privileged attacker to social engineer a legitimate user with network access to execute scripts targeting the affected system or the victim's local system. A successful attack using this vulnerability requires human interaction from a person other than the attacker. Affected releases are TIBCO Software Inc.'s TIBCO WebFOCUS Client: versions 8207.27.0 and below, TIBCO WebFOCUS Installer: versions 8207.27.0 and below, and TIBCO WebFOCUS Reporting Server: versions 8207.27.0 and below.
Weakness: CWE-79
Which versions are affected by CVE-2021-35493?
It affects 3 products.
Products include Tibco Webfocus Client, Tibco Webfocus Installer, Tibco Webfocus Reporting Server.
How do I fix CVE-2021-35493?
No fix has been published for CVE-2021-35493 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-2021-35493 being exploited?
There is no known exploitation of CVE-2021-35493 in the wild and no public exploit code.
Sources
Also known as GHSA-3782-4pq4-qwj2.