CVE-2021-26589 Cross-site scripting in HPE Superdome Flex Server
Attackers can exploit missing HttpOnly attributes on session cookies to perform Cross-Site Scripting attacks on HPE Superdome Flex Servers.
- 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-2021-26589?
CVE-2021-26589 is a medium-severity cross-site scripting vulnerability in HPE Superdome Flex Server, published on 19 Oct 2021. 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 potential security vulnerability has been identified in HPE Superdome Flex Servers. The vulnerability could be remotely exploited to allow Cross Site Scripting (XSS) because the Session Cookie is missing an HttpOnly Attribute. HPE has provided a firmware update to resolve the vulnerability in HPE Superdome Flex Servers.
Weakness: CWE-732
Which versions are affected by CVE-2021-26589?
It affects 2 products.
Products include Hpe Superdome Flex 280 Firmware, Hpe Superdome Flex Firmware.
How do I fix CVE-2021-26589?
No fix has been published for CVE-2021-26589 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-2021-26589 being exploited?
There is no known exploitation of CVE-2021-26589 in the wild and no public exploit code.
Other vulnerabilities in HPE Superdome Flex Server
Sources
Also known as GHSA-f33r-fh9w-f296.