CVE-2025-20291 Open redirect in Cisco Webex Meetings
An attacker can redirect Webex Meetings users to malicious sites via crafted join URLs, facilitating phishing attacks.
- 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-2025-20291?
CVE-2025-20291 is a medium-severity vulnerability in Cisco Webex Meetings, published on 3 Sep 2025. 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 vulnerability in Cisco Webex Meetings could have allowed an unauthenticated, remote attacker to redirect a targeted Webex Meetings user to an untrusted website. Cisco has addressed this vulnerability in the Cisco Webex Meetings service, and no customer action is needed. This vulnerability existed because of insufficient validation of URLs that were included in a meeting-join URL. Prior to this vulnerability being addressed, an attacker could have exploited this vulnerability by including a URL to a website of their choosing in a specific value of a Cisco Webex Meetings join URL. A successful exploit could have allowed the attacker to redirect a targeted user to a website that was controlled by the attacker, possibly making the user more likely to believe the website was trusted by Webex and perform additional actions as part of phishing attacks.
Weakness: CWE-601
Which versions are affected by CVE-2025-20291?
It affects 1 product.
Products include Cisco Webex Meetings.
How do I fix CVE-2025-20291?
No fix has been published for CVE-2025-20291 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-20291 being exploited?
There is no known exploitation of CVE-2025-20291 in the wild and no public exploit code.
Other vulnerabilities in Cisco Webex Meetings
- CVE-2017-12368 Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players
- CVE-2017-12369 Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players
- CVE-2017-12370 Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players
- CVE-2017-12371 Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players
- CVE-2017-12372 Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players
Sources
Also known as GHSA-65ch-j3gf-4m56.