CVE-2021-25267 Cross-site scripting in Sophos Firewall
Cross-site scripting in the Webadmin interface allows administrators to escalate privileges to super-admin on Sophos Firewall devices.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-25267?
CVE-2021-25267 is a medium-severity cross-site scripting vulnerability in Sophos Firewall, published on 5 May 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Multiple XSS vulnerabilities in Webadmin allow for privilege escalation from admin to super-admin in Sophos Firewall older than version 19.0 GA.
Weakness: CWE-79
Which versions are affected by CVE-2021-25267?
It affects 1 product.
Products include Sophos Firewall Firmware.
How do I fix CVE-2021-25267?
No fix has been published for CVE-2021-25267 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-2021-25267 being exploited?
There is no known exploitation of CVE-2021-25267 in the wild and no public exploit code.
Other vulnerabilities in Sophos Firewall
Sources
Also known as GHSA-5fg7-mh37-fjrv.